1. What is Social Contract Theory and what are its strengths and Essay

1. What is Social Contract Theory and what are its strengths and weaknesses - Essay Example The social contract theory suggests that men being self interested can dominate his will in a civic society and hence a contract can avail justice. The social contract theory emphasis on the origin of the society. Social contract theory is a concept theory which is used in political science, sociology and philosophy. It is an implicit agreement between the state and citizens of the country to stay within the society without violating the contract. Social contract theory relies on an anthropological conception that man is either â€Å"good† or â€Å"evil†. The most famous philosophers of social contract theory are Thomas Hobbes, John Locke and Jean – Jacques Rousseau. It is a theory which has its ground on democracy. According to this theory, the people abide by law to live in peace and harmony in a society. Social contract theory is a philosophical idea which propagates maintenance of society and law. According to this theory people in a state abide by a contract to agree upon laws and rules to live in a society. Usually it is a government which will enforce these laws in a society or state. The theory suggests that if someone violates the rules then he will punish. This contract theory can be changed if the people believe that the law needs a change. Social contract theory implies that without it the society will be in chaos and people would act according to their wishes and desires. For example, in case of natural disaster like flood or hurricane people would do whatever they like as no one is there to enforce law in a confused situation. The society need a contractual obligation which makes the responsible towards their action in the society and the social contract theory advocates it. Social contract theory explains that for a secured society a contract is necessary between citizens and state. Since men are born free, he has a tendency to violate natural laws and create conflicts and brutalities in a

Swallowing Essay Example | Topics and Well Written Essays - 1500 words

Swallowing - Essay Example It is anticipated that this review will contribute to the self-learning of the author, as well as extending on insights and understandings of dsyphagia within the literature at this present time. The trigeminal nerve is the largest of the cranial nerves. It is very important in swallowing due to its afferent control of general sensation to the face, teeth, gum, muscles of mastication and the anterior two thirds of the tongue (Miller, 2006). Its efferent control is of the muscles for mastication. Innervating the tensor velar palatine, the trigeminal is partly responsible for the flattening and tensing of the soft palate. Innervations of the extrinsic laryngeal muscle results in the nerve's support for the upward and anterior movements of larynx. The facial nerve's main function is its motor portion; although, its afferent portion is involved in taste sensation from the anterior two thirds of the tongue (Miller, 2006). It provides motor innervations to the sublingual and submaxillary salivary glands. More specifically, it is involved in swallowing by regulating the lip sphincter and the buccal muscles, which allows food to be held inside the mouth and also assists in pulling the larynx up and back. The glossopharyngeal (GPN) is composed of the lingual branch of the GPN (GPN-li) and the GPN-ph. Its sensory portion transits inputs from the posterior third of the tongue, the velum and the pharynx, which includes the tonsils (Miller, 2006). The glossopharygeal nerve gathers sensation from the fauces, the palatine tonsil, upper pharynx, and the back third of the tongue. Sensory fibers carry taste information from the posterior one third of the tongue. Afferent input is received from receptors located in the larynx and these are carried primarily to the superior laryngeal nerve, also known as the cough center of the medulla. The motor portion communicates outputs to the middle pharyngeal constrictor muscle and also innervates the stylopharyngeal muscle, which, together with the palatopharyngeus muscle (X nerve), elevates the palate. The stylopharyngeus muscle dilates the pharynx laterally and contributes to the elevation of pharynx and larynx. Vagus (X)The vagus nerve (X) is the most dominant cranial nerve during the swallowing process. The vagus nerve is the major efferent for the pharyngeal constrictors and is the major afferent for the middle and inferior portions of pharynx (Miller, 2006). It supplies also main efferent innervations to the palatal muscles. Branches of the vagus nerve attach to muscles of the larynx and pharynx. It is also known as the nucleus ambiguous, and it innervates branchial arch muscles of the pharynx and larynx as well as the muscles of the upper esophagus and uvula. Branches also extend to the, glossopalantine, levator veli palatine and the palatoglossus muscles making it primarily responsible for palatal functioning. One of the motor nuclei transmits motor output to the pharyngeal constrictor muscles and in this way can completely control the intrinsic musculature of the larynx. Moreover, taste buds on the root of the tongue and on the epiglottis contribute special visceral afferent fibers t o the superior laryngeal branch. General visceral afferent fibers convey sensation from the lower pharynx, larynx, trachea, and esophagus. Together with the