Sensory Systems in Animals

Sensory Systems in Animals All animals have some kind of nervous system that can receive and interpret information about its internal and external environment. Sensory organs provide a means for communication from the external environment to the internal. Sensory receptors contain receptor cells that are specialised to respond to specialised stimuli. These sensory organs may be found all over the body or in localised areas. Afferent neurons carry the sensory information from the periphery toward and into the central nervous system while the efferent neurons carry information away from the central nervous system. Sensations arising when signals initiated in sensory receptors are transmitted in certain parts of the brain, producing signals in certain parts of the brain. (Hickman, Roberts, Keen, 2009) Stimulus types possess features that can be distinguished from one another. In the body of an animal the sensory receptor cells are usually modified. For example, certain receptors detect pressure, heat, chemicals, light and even pain. The stimulus for light detection and chemical detection is different and in addition, the same type of stimulus may possess different features. This can be seen, in for example the detection of blue and red light, both being perceived as a stimulus of light. In the first part of this practical the sensory structures of a number of invertebrate organisms were studied and compared to each other. Mainly chemoreception, photoreception and mechanoreception were studied. Chemicals in the animals surrounding is detected by a number of chemoreceptors. Chemoreceptors may be divided into two main categories; olfactory (smell), which respond to airborne molecules and gustatory (taste), responding to dissolved molecules. Mechanoreceptors are made up of undifferentiated nerve endings found in connective tissue on the periphery of the animal such as the skin. More complex accessory structures have accessory structures that transfer mechanical energy to the receptive membrane. These mechanoreceptors are also able to filter the mechanical energy and they may also include the muscle stretch receptors Photoreception consists of transducing photons of light into electrical signals that can be interpreted by the nervous system and photoreceptive organs such as the eyes. These sensory structures in different animals have taken many different shapes and sizes that have been adapted to the particular environment best for them. Although quite different all the sensory structure of particular receptor has the same function of collecting information from the environment and responding in the best way possible to enhance its survival. Apparatus Light Microscope cardboard Stereomicroscope 1g-5g, 10 g, 20 g, 50, 100 g weights Pencil x3 500 mL water bath Pointed forceps heater/Bunsen to heat water Stop watch thermometer X3 5 c coins Method Refer to attached sheet Precautions The plastomounts were placed under a stereomicroscope for better viewing of small body features The same pair of forceps was used to apply the stimulus since different instruments could result in different outcomes. As much as possible the coin was placed in the sample place for all subjects since different area may have a different amount of receptors. The temperature in the water baths was measured before the experiment was conducted. This was done so that the initial temperature of the water for all the subjects would be the same. Thus the results would be more comparable. Sources of Error Due to the clothing worn the experiment of tactile response using the forceps had to be carried out over the clothing. This thus formed an extra layer that could decrease the response of the nerve. Not all the sensory structures of the organisms may have been identified. The experiments on each subject were only carried out once. More accurate results would have been obtained if carried out at least 3 times Results Part A Refer to attached diagrams Thermoreception For all 3 subjects the cold water was almost painful, while the water at 45 degrees was soothing. On placing the hand in the water at room temperature the right hand felt the water warm while the left hand (previously in the warm water) felt the water cold. Discussion Part A: Invertebrates These sensory structures in different animals have taken many different shapes and sizes that have been adapted to the particular environment best for them. These mainly have evolved from simple to more complex sensory organs that enhance the ability of the animal in collecting information from the environment and responding in the best way possible to enhance its survival. The Cnidarian Hydra, has relatively simple sensory cells scattered all over the body among the other epidermal cells, especially the mouth and tentacles. It is of utmost importance for sensory structures to be located all over the body due to the fact that the animal is radially symmetrical and can detect stimuli from all direction, including the detection of predators. The free end of every sensory cell bears a flagellum, which is the sensory receptor for chemical and tactile stimuli. The other end branches into fine processes, which synapse with nerve cells. On the surface of the animal is a modified cilia called a Cnidocil, that when simulated by any mechanical stimulation releases a nematocyst that is toxic to the predator. (Barnes Cawlow, 2002) These sense organs then lead into a diffuse nerve network, forming two interconnected nerve nets. It is of utmost importance for sensory structures to be located all over the body due to the fact that the animal is radially symmetrical and can detect stimuli from all direction, including the detection of predators. (Hickman, Roberts, Keen, 2009) From the radially symmetrical Cnidarian one can move on to the bilaterally symmetrical Platyhelminthes that is represented here by the Planaria. Here the nervous system is organised into two longitudinal nerve chords that end in the anterior of the animal. This forms an anterior head and cephalisation is introduced. (Hickman, Roberts, Keen, 2009) The Planaria, unlike the Hydra are seen to have an eye spot and auricles. The auricles are lobe like and are found on the sides of the head. The auricles act as a means of chemoreception while the eye spot serves as photoreceptor detecting light. Like the Hydra, it may also contain a statocyst for equilibrium and rheoreceptors for sensing water currents. Cephalisation allowed the animal to develop a bilaterally symmetrical shape. The animal moved forward and can detect changes in the environment with the part of the body with the most sensory organs, its anterior region. (Leineschh, 2007) The Pulmonate gastropod, belonging to the class Gastropoda is seen to further develop its sensory in the anterior of the body. In the anterior of the body the animal is seen to have paired eyes that function as photoreceptors, even though they are not capable of forming an image. Also the labial  and  cephalic tentacles  are mechanoreceptors, sensitive to tactile stimuli, and are probably also chemoreceptive.  Ã‚  Ã‚  (Hickman, Roberts, Keen, 2009) The general body surface is also sensitive to chemical and mechanical stimuli.  Ã‚  The gastropod also has a structure that acts as both a mechanical and chemoreceptor. This is seen to be the osphradium  which is located in the inhalant respiratory water current where it monitors water on the way to the gill. A common structure with the previously studied animals is the statocyst which functions as a detector of gravity. (Hickman, Roberts, Keen, 2009) The next three species studied all belong to the phylum Arthropoda, but are found in different classes. The first to be studied was the Tarantula found in the class Arachnida (order Aranea). This animal has hair like receptors called sensory setae that function as mechanoreceptors all over the body of the animal. Also, in addition they have small, extremely sensitive tactile hairs called trichobothria that are sensitive to even airborne vibrations, including sound frequencies. Chemoreception is associated with fine hairs surrounding the mouth, on the pedipalps. (Hickman, Roberts, Keen, 2009) The tarantula also has 8 simple eyes that are made up of a lens, optical rods, and a retina. Even though most only can detect movement like the previously studied animals, some are able to form images. Since the spider is more accustomed to capturing prey within webs, vision is relatively unimportant and thus in most remain simple. (Underwood, 2009) Another member of the phylum Arthropoda is the scorpion, classified in the class Scorpionida. Although they are equipped with venom for defence the scorpion is still seen to be the prey of many other animals, thus they require specialised sensory structures for detection of danger. This animal is seen to possess a unique sensory structure know as a pectine. This is used primarily in detecting vibrations which are used for capturing prey. (Gaoge Smith , 2000) This is seen to be the primary chemosensory organs of scorpions. The pectines are found in the ventral medial part of body and are seen to be paired appendages that brush the substrate as the scorpion walks. Comb-like organ consists of a supportive spine and an array of teeth. Each tooth supports hundreds of setaform sensilla called pegs. The neuronal cell layer within the teeth is seen to be further divided into inner and outer sub-larninae, comprised of chemosensory and mechanosensory neurons. (Melville, 2000) Similar to the arachnids described previously, the scorpion has sensory hairs called setae that function as tactile and chemosensory hairs. These sensory hairs are also found on the pedipalps of the animal to sense air-borne vibrations. Also, thicker setae are found all over the body to detect direct touch. In contrast to the spiders the scorpions possess six pairs of eyes as part of their photoreceptor structure. The last arthropod group to be described is the centipede, classified into the sub-phylum Myiapoda and order Centipedes. These animals are seen to possess one pair of antennae instead of the usual two paid found in other arthropods. The antennae are sensory appendages found in the head of the animal that are sensitive to airborne chemicals and also possibly humidity. Similar to the planaria, Centipedes also bears a pair of simple eyes made up of ocelli. (Barnes Cawlow, 2002) Part B: Sensory function in Mammals Mechanoreception Somatosensory system has a large number of receptrors which vary in location and type. Receptors are located in the superfial skin, dermal, epidermal and depper in dermis, and in subcutaneous tissue. Meissners corpusles are located in the dermal papillae, Merkels receptors in the dermal papillae, and bare nerve endings. Subcuateous receptors, beneath both the previously mentiones layers, possess pacinian and Rufflin corpusles. Pacinian may be both cutaneous and subcutaneous. (Wang , 2007) The Pacinian corpusles are present in the skin, muscles, mesentery, tendons, and joints of mammals that are rapidly adapting. Each Pacinian corpuscle contains a region of receptor membrane that is sensitive to mechanical stimuli and that is surrounded by concentric lamellae of connective tissue structures (Anonymous, 2007) Pressure on the corpuscle transmits mechanically through the layers to the sensitive membrane of the receptor neuron. The receptor membrane normally responds with a brief, transient depolarization at both the onset and the offset of the deformation. The mechanical properties of the intact corpuscle, which preferentially pass rapid changes in pressure, confer on the receptor neuron its normally phasic response. (Randall, Berggren, French, 1997) This behaviour explains why the sensation of the coin was lost after a few seconds. The added coin did not produce enough mechanical force to excite the Pacinian corpustle once again, thus it was not felt. The time taken for the coin to stop being felt varied from person to person. This could be due to the different amount of tissue between the skin and the nerve. The thicker the less the coin is felt and the quicker is sensation is lost. A mechanoreceptors  receptive field  is the area within which a stimulus can excite the cell. If the skin is touched in two separate points within a single receptive field, the subject will be unable to feel the two separate points. If the two points touched span more than a single receptive field then both will be felt. The size of mechanoreceptors receptive fields in a given area determines the degree to which detailed stimuli can be resolved: the smaller and more densely clustered the receptive fields, the higher the resolution. For this reason, the density of the Merkel nerve endings and Meissners corpuscles determine the sensitivity of the particular area. (Wang , 2007) From the results obtained the fingertip is seen to be the most sensitive and thus will have a high density of Merkel nerve endings and Meissners corpuscles. On the other hand the fore arm is seen to be one of the least sensitive and thus will have a small density of the nerves Besides physical contact detected by mechanoreceptors, more complex accessory structures are able to transfer mechanical energy to the receptive membrane. These most complex accessory structure associate with mechanoreceptive cells is the vertebrate middle and inner ear. Hair cells are found in all vertebrate animals including humans, and are extremely sensitive mechanoreceptors. They are responsible for transducing mechanical stimuli to electrical signals. They are found in several locations. For example, in vertebrate fish and amphibians, an external set of receptors are called the lateral line system. This system is based on series of hair cells that detect motion in the surrounding water and when stimulated produces an action potential as in the mammalian ear. This lateral line is, however, not present in mammals. (Hickman, Roberts, Keen, 2009) The ears of vertebrates perform two sensory functions. The organs of equilibrium perform like the statocysts in invertebrates that allow the animal to detect its position with respect to gravity. The organ of hearing provides formation about vibrational stimuli in the environment, thus detecting sound. (Hickman, Roberts, Keen, 2009) Sound waves enter the external ear of a vertebrate aided by the pinna and the tragus. The entire external structure has a function similar to that of a funnel, amplifying and then concentrating sound waves. Vibrations from sound waves cause changes in air pressure, which travel from the external ear, down the auditory canal, and then move the eardrum. The ear converts energy of sound into nerve impulses. The vibration of the eardrum causes the fluid of the cochlea to move. The basilar membrane containing the floor of the cochlea, and the scala media, containing the organ of corti is where these vibrations undergo the conversion to neuronal impulses. The organ of corti contains sensory hair cells, and the waves of fluid in the cochlea press the hair cells against an overhanging tectorial membrane, and then pull them away. These hair cells are just across synapses from sensory neurons, and this action provides a stimulus that opens sodium channels in the sensory cell membranes. This provides for an action potential in the environment of high potassium concentrations that the endolymph has. Auditory nerves located in a spiral ganglion carry the action potential to the brain. (Randall, Berggren, French, 1997) Invertebrates, such as the insects have ears located on their thoracic legs and are associated with respiratory passages, called the trachea. The ear tympanum has an analogous function to the tympanic membrane of the mammalian ear. Similar to a mammal, sound waves stimulate the membrane to vibrate, but in the insect, this directly activates nerve impulses. (Barnes Cawlow, 2002) Some insects also have a related tracheal system that directs information on air pressure changes, inside the insect, to the eardrum. If the right tympanum is stimulated, it will send the signal through the tracheae to the left tympanum. The delay in stimulus between the left and the right ear helps the insect locate the direction from which the sound came. Webers law states that the ratio of the difference threshold to the value of stimulus is constant. According to this relationship, doubling the value of the stimulus will cause a doubling of the difference in the threshold. As seen in the results the just noticeable difference or intensity difference for the 50 g and 100 g was seen to be constant for all the subjects. Chemoreception Vertebrates, including humans detect chemicals using general receptors and two types of specialized receptors, gustatory and olfactory. Many aquatic vertebrates have generalized chemical receptors scattered over their body surface. Vertebrates usually accomplish chemoreception by moving chemically rich air or water into a canal or sac that contains the chemical receptors. Mammals together with other vertebrate have taste receptor cells located in taste buds which are supported by basal cells. Chemoreception is much different in invertebrates than in vertebrates. For example, planarians find food by following chemical gradients in their surroundings. Their simple chemoreceptors are found in pits on their bodies, over which they move water with cilia. Insects have chemoreceptors in their body surface, mouthparts, antennae, forelegs, and, in some cases, the ovipositor. Moths, for example, smell with thousands of sensory hairs on their antennae. (Barnes Cawlow, 2002) Photoreception In vertebrates such as humans, the surface of the eyeball is made up of the sclera, a white connective tissue, and under that a thin pigmented layer called the choroid. The sclera contains the cornea which is transparent, and is where light initially enters the eye, and the choroid contains the iris which contracts and expands to regulate the amount of light entering the hole in its centre, known as the pupil. The rear internal surface of the eye is the retina, which contains the actual photoreception cells. In the retina, there are two types of receptor cells, rods and cones. Rods and cones contain visual pigments made up of light absorbing retinal molecules. (Randall, Berggren, French, 1997) Compound eyes of arthropods are image forming eyes composed of many optic units called ommatidia. These are able to detect a very small fraction of the spectrum of light that the eye as a whole is exposed to; like the rods and cones of the vertebrate eye. In compound eyes, the photoreception cells are called retinular cells, and they surround a single eccentric cell. Because the receptive field of each unit in a compound eye is relatively large, compound eyes have lower visual acuity than vertebrates. (Randall, Berggren, French, 1997) Thermoreception Temperature is an important environmental variable, and many organisms acquire sensory information about temperature from the action of specialized nerve endings known as thermoreceptors, in the skin. Both the external skin and upper surface of the tongue of mammals contain warmth and cold receptors. the warmth receptors detect an increase in temperature in the environment by increasing the firing rate transient. On the contrary cold receptors increase its firing rate transient when a cool environment is detected. (Randall, Berggren, French, 1997) These receptors are quite sensitive. Their firing rate is seen to increase the more the temperature of the external environment varies from the internal body temperature of about 37 OC. when the temperature becomes sufficiently different the patter changes for both types of receptors and the frequency of the action potential is seen to drop. The response of the thermoreceptors consists of a large transient change in firing rate, followed by a longer-lasting, steady-state phase. Other sensory structures that are not present in humans also exist. For example, snakes have thermoreceptors that are able to detect emitted heat energy. This is advantageous for them to detect warm-blooded prey. Also fish are able to use very low frequency electrical signals to communicate in murky water, thus they are able to locate each other. (Hickman, Roberts, Keen, 2009) Conclusion From this experiment it was concluded that different organisms have different sensory structures adapted to their unique modes of life. One could also not that as animals become more complex, their sensory structures are also seen to be more developed. This can be seen from the evolution of the simple eye spot in planaria to the complex eye found in humans. Not only are humans seen to be able to detect movement but also colour. However, one may also note that humans do not always possess the most advanced sensory structures. This can be seen in for example, the ability of reptile snakes to detect infrared radiation. This being absent in humans.

Learning Disabilities: ADHD Essay -- Essays Papers

Learning Disabilities: ADHD Attention Deficit Hyperactive Disorder (ADHD) is a condition that can affect any person’s behavior and way of life. In their book, Special Education, J.Ysseldyke and B. Algozzine state that no area has experienced as much growth as learning disabilities. It is by far the largest of all special education categories. Enormous changes in the last century have changed the way society treats children with disabilities. Psychologist William Lee Heward affirms that in the 1800’s there were few public provisions dealing with adults or children with special needs. Psychologists researched in order to discover the characteristics of a person with ADHD and the effects it has on human behavior. Teachers, parents, and other people have an important role in dealing with a person who has the condition. Special education today is an area of growing interest and of continuing controversies. Full and fair access to educational opportunities was often denied to children who were different because of race, culture, language, gender, or exceptionality (Banks and Banks 293). Because local school officials did not have any legal obligation to grant students with disabilities the same educational access that other non disabled students enjoyed, many schools denied enrollment to children with learning disabilities. This exclusion had to be corrected making it necessary to make laws governing the education of exceptional children. As a consequence, in 1975 Law 94-142, Congress passed the Individuals with Disabilities Education Act (IDEA). This law has changed education throughout the country affecting and changing the roles of special educators, schools, administrators, parents and many other professionals involved in the... ...o Special Education. 6th ed. Ohio: Prentice may, 2000. Kirk, Gallagher & Anastasiow. Educating Exceptional Children. 8th ed. Boston: Houghton Mifflin Co., 1997. Parodi, Luis M. Educacià ³n Especial y sus Servicios. Puerto Rico: Publicaciones Puertorriqueà ±as, Inc., 2002. Rief, Sandra F. Cà ³mo Tratar y Enseà ±ar al Nià ±o con Problemas de Atencià ³n e Hiperactividad. Argentina: Editorial Piados, 2000. Schirduan, V. M. Elementary students with attention deficit hyperactivity disorder (ADHD) in schools using multiple disorders (ADHD) intelligences theory: Intelligences, schools using multiple intelligences theory: Intelligences, and achievement. Ed. D. diss., University of concept, and achievement. Ed. Diss., University of, 2000. Ysseldyke, J. and Algozzine, B. Special Education: A Practical Approach for Teachers. 3rd.ed. Boston: Houghton Mifflin Co., 1995.

CIA-The World Factbook Essay

As a member of the Arab League, an organization, of Arab States founded in 1945, Syria joined the Arab States in the War against Israel in 1948; and since then the two countries have been at war. Despite the defeat of the Arab army in 1948, there was another Arab- Israeli war, June of 1967. Heavy fighting took place between Syria and Israel. A truce was arranged within a few days, but not before Israel had occupied hundreds of square miles of territory in southwestern Syria. Incidentally, before acceding to the United Nations cease-fire, the Israeli forces took over control of the fortified Golan Heights commanding the Sea of Galilee. The strategic, heavily fortified plateau that is the Golan Heights is wary of war. The announcement of the union of the area into Israel in December 1981 added to Syria’s territorial losses. Syria has not accepted detachment of the Golan Heights from the Syrian motherland. As of October 1991, both Syria and Israel have engaged in on -and-off discussions of making peace. The countries have considered asking the U. S. to oversee an accord, which would make it more likely that American peace monitors would be put in place on the Heights. Israel has agreed to withdraw from the Golan, with the implicit understanding that the withdrawal will be total. The two sides have accepted the principle of equality– of â€Å"equality† of security arrangements on and around the Golan. Both countries, for instance, would remove their armed forces from the border region. However, the Syrians demanded that the demilitarization be symmetrical : Israel insisted that it could not pull back as far as Syria, since the Syrians having possession of the Heights would have had enormous topological advantage in the event of a surprise attack. There is an agreement that the Israeli withdrawal would take place gradually. Syria wants it completed in something close to 1 and a half years ,while Israel is asking for three. For the Syrians, the Golan is just a channel of saving grace, since Syria in its history of participation in the Arab- Israeli Wars, it has lost a lot of its territorial land. As of 1997 there have been no major breakthroughs. The Palestine Liberal Organization (PLO) as the name, implies is an independent state of Israel. Again this is about Syria’s membership in the Arab League. There have been repeated failures in tackling the Palestine question. With the emergence of the Palestine guerilla movement, and the PLO-Israeli attacks, Palestine is a constant reminder that inter-Arab unity should be achieved as soon as possible. Because of the PLO situation, the loss of Palestine and the continuing tragedy of the Palestinian people, there is disillusionment and political alienation in Arab country. Large Palestinian refugee groups have formed a an opulent and critical significance in Lebanon and Jordan. The very large Palestinian refugee conglomerate in Syria has been assured of Syrian sympathy for their cause. Although it is obvious that Syria’s compassion is politically rooted. The stark political sympathy that the Syrian government has for the independent state of Israel [which is the PLO] has a significant influence; on the inception of a specific question that this paper asks. How does Syria use terrorism in formulating the country’s foreign and defense policy as it places particular emphasis on its relationship with Israel? This paper uses terrorism as the abject â€Å"welding† channel to unify this study, not only due to the fact that terrorism is a very timely and relevant global political issue but also because terrorism is not a very unlikely strategy (any longer) when it comes to most strategies of defense which belong to Arab nation states. Schmuel Bahr, in his study â€Å"Bashar’s Syria: The Regime and its Strategic Worldview† which appeared in the book â€Å" Comparative Strategy†, begins his research with how, â€Å" The Syrian regime—and to a certain extent modern Syria in a broader sense—is the handwork of Hafez al-Asad. † (353). Bahr also states that, â€Å"His thirty-year autocratic rule (before which he also had wielded considerable influence in the regime of his predecessor) has made distinguishing between the president and the state almost impossible. † (353). Eyal Zisser, on the other hand, writes in the journal article â€Å" Who’s Afraid of Syrian Nationalism? National and State Identity in Syria†, â€Å"Bashshar’s commitment to Arabism required no substantiation. He frequently stressed his loyalty to the Arab nation in public statements and depicted Syria as a fortress of Arabism. † (179). Zisser also reveals the following about the confidence the Syria has on itself as an independent country, â€Å"This state is no longer fragile, but rather is self-confident. † (196). An article (c.2007) devoted to the state of Syria, â€Å" Political Overview† , an article that was part of â€Å"The Syria Review 2007† presents that, â€Å"The U. S. government has labeled Syria a state-sponsor of terrorism. † (67). With regard to Syria’s defense history of utilizing terrorism as a political strategy Zisser writes, â€Å"The Syrian government has taken a generally aggressive stance against insurgent organizations that oppose its rule. Its efforts to suppress insurrection have generally been successful. Militants did manage to bomb a bus in Damascus in 1997, killing 20. † (68). The 2007 â€Å"CIA-The World Factbook—Syria† informs that the current government type of this nation is that of, â€Å" republic under an authoritarian, military-dominated regime. † (series # 02771527). Erik Knudsen in his â€Å"The Syrian-Israeli Political Impasse: A Study in Conflict, War and Mistrust. † , which had been part of the journal â€Å"Diplomacy and Statecraft† discusses the stand of Syria when it comes to its situation with Israel as far as the topic of peace goes—with,â€Å" Furthermore, the Israeli governments point out that Syria has displayed a reluctance to pursue a real and lasting peace. † (213). Finally, however, there appears to be known data which apparently communicates a message which is quite supportive of Syria’s foreign policy when it comes to military and governmental defense in Noriko Sato’s â€Å" On the Horns of the Terrorist Dilemma: Christian Syrians’ Response To Israeli ‘Terrorism’ † in the academic journal â€Å" History and Anthropology† and this known data contains this, â€Å" As related earlier, it is a prevailing understanding among Aleppienes (coming from Alepo, to mean Syrian Christians) that ‘terrorism’ is a byproduct of United States policy and that the Israeli military operations against the Palestinians are conducted in the guise of supporting American policy for combating ‘terrorism’. † (152).

Nationalism in Europe Essay - 913 Words

Nationalism is the idea that a people who have much in common, such as language, culture and geographic proximity ought to organize in such a way that it creates a stable and enduring state. Nationalism is tied to patriotism, and it is the driving force behind the identity of a culture. Nationalism had many effects in Europe from 1815, The Congress of Vienna and beyond. In the following essay I will describe many of the consequences of nationalism on European identity, as well as some of the conflicts that it created. Nationalism was strongly endorsed by the middle class, including intellectuals, professors, students and journalists. These groups of middle class professionals were also the driving force behind the liberal†¦show more content†¦A people that are repressed and have a strong national identity are prone to violent and unpredictable revolutions and uprisings. We see examples of that precept in the French Revolution and the tumultuous republics that followe d in the aftermath of Emperor Napoleon. We see other clear cut examples of nationalism in Italy as well. The journey that Italy took to statehood in the 1800s involved various figureheads performing different roles. The nationalism of Italy began with Mazzini who laid the ideological base for a united Italy. He wrote many pamphlets, papers, and dissertations on the manifest destiny, if you will, of the Italian people to unify. This rhetoric was stirring to the young middle class individuals of Italy who accepted this ideology and supported ideological efforts for a unified Italy. Cavour, of the province of Piedmont is where the basis of a real Italian resurgence would begin. Cavour wanted Piedmont to be the basis of the Risorgimento, or the Italian resurgence. Piedmont was developing well from an industrial perspective and by siphoning trade agreements away from Austria was able to develop into an industrial base for further operations. The actual, boots on the ground ventu re was led by Garibaldi who recruited many young men to serve in â€Å"The Expedition of The Thousand.† The rising nationalism of the time period, as well as the efforts of Mazzini stirred these young middle andShow MoreRelatedNationalism in Europe Essay872 Words   |  4 PagesNationalism in Europe Nineteenth century Europe, exploding with Nationalism, shows us how powerful a nation can be when united for a common cause. Nationalism is the love and devotion to ones country, where devotion stands for the spirit to protect the needs and ideals of the nation. Nationalism acted as a unifying force in Europe for much of the nineteenth century when unification movements were frequent. The unification of Italy and Germany, are prime examples of nationalism at work. 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(1988).† Based on this description when we think about the role of Nationalism in Europe during the 20th century we are inclined to remember that the strong feelings of nationalism ultimately came toRead MoreDiscuss How Nationalism Spread Across Europe with Napoleon but Was Repressed for a Generation Under the Congress of Vienna and Concert of Europe Until the Revolutions of 1848876 Words   |  4 PagesNati onalism was formed with the idea that a nation is made up of people who are joined together by common language, customs, cultures and history. It held the belief that one should be loyal to the people of their nation, not a king or empire. Nationalists believed that people of a single nationality should unite under a single government. The concept of Nationalism emerged in the French Revolution and was spread to the rest of Europe by Napoleon’s conquests. Nationalism was used by NapoleonRead MoreFour Definitions of Nationalism Essay1732 Words   |  7 PagesNationalism was a debatable issue in 19th century. It had developed differently in Western Europe and Eastern, Central Europe. Western Europe was identified with Civic Nationalism, and nationalism was also seen as an imperialist and economic movement. In Eastern and Central Europe, however, there were many types of nationalism, such as the popular nationalism, that aimed at national liberation and unification. Benedict Anderson has a theoretical definition of nationalism, which aim at correctingRead MoreThe Impact Of Nationalism1325 Words   |  6 Pages Nationalism is a sense of putting one’s country before themselves and everything else due to common cultures, languages and other customs. It has been a part of the way modern history has been shaped since the late 18th century with Napoleon, all the way to present day. As one historian wrote, Nationalism is a â€Å"Poli tical outlook†¦that a nation is composed of people who are joined together by the bonds of a common language†¦customs, culture, and history† (9/13/17). Nationalism has shaped the historyRead MoreWere Nationalistic Beliefs Ultimately Responsible for the Outbreak of the First World War1107 Words   |  5 Pagesoutbreak of the First World War? Can nationalism be held solely responsible for starting what is usually regarded as the most destructive war, at least in terms of human lives, the world had ever seen? The answer to this question is a solid no. Though nationalism played an important role in the outbreak of the war there are many other contributing factors which must be taken into account. Imperialism, militarism, the arms race and the balance of power in Europe were all important factors that leadRead MoreNegative Impacts Of Nationalism1408 Words   |  6 Pagestogether to go to war against Communism. Nationalism was invented in Europe by intellectuals who wer e inspired by Napoleons conquest. This ideology to changed people’s perspective about what their country meant to them. Unified States such as Italy, Germany were created during a great migration that formed unified states. Instead of the smaller societies people once lived in became a nation of individuals in certain countries that they could call their own. Nationalism has also helped in the improvement