requires a receptor‚ a control centre‚ and an effector. A receptor is the structure that monitors internal conditions. Receptors sense changes in function and begin the body’s homeostatic response. These receptors are connected to a control centre that studies all the information sent to it by the receptors. In most homeostatic mechanisms‚ the control centre is the brain. When the brain receives information about a change in the body’s internal conditions‚ it sends out signals along nerves. These signals
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located posterior pharynx. The cranial nerves that are associated with our taste sense are VII Facial located within the tongue‚ IX Glossopharyngeal located within the tongue‚ and X Vagus located within the pharynx. Taste likes and dislikes have homeostatic value. Taste is affected by many factors‚ and what is commonly referred to as our sense of taste depends on stimulation of our olfactory receptors by aromas. Smell- The nose is the body part that helps us sense smell. The nose contains thousands
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would forever alter and accelerate medical research. Other discoveries: Along with her discovery of a new way to develop drugs‚ Elion founded many other drugs that attacked the life cycle of nucleic acid. This included allopurinol‚ a treatment for gout‚ and azathioprine which was an effective immunosuppressive drug. Although reducing the body’s ability to
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Study of Oxygen Consumption to Measure Energy Metabolism in Mammals Brianne Simonsen Lab Section 8 4 Oct. 2005 Abstract In this experiment the oxygen consumption of a mouse in environments of varying temperatures was studied. The hypothesis behind this experiment was that more oxygen would be consumed at a lower temperature to maintain body heat. To measure the rate of oxygen consumption a mouse was given a specific amount of oxygen. The amount consumed in a specific time was measured and
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Nancy Yedanapalli physio ex Activity 6 1. Explain why the larger waves seen on the oscilloscope represent ventricular contraction. a. The ventricular contraction is of greater force than the atrial contraction‚ since the ventricular contraction functions to send blood throughout the entire body (systemic circulation)‚ where as the contraction of the atrium send blood only to the lungs and rest of the the heart (pulmonary circulation). 2. Explain why the amplitude
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Circulatory System Composition of Blood Red Cells -These are tiny‚ disc-like cells which do not have nuclei. -In their cytoplasm is the haemoglobin‚ a protein combined with iron. Haemoglobin combines with oxygen in places where there is a high concentration of oxygen‚ to form oxyhaemoglobin. -Oxyhagemoglobin is unstable compound. It breaks down and releases its oxygen in places where oxygen contentration is low. White Cells -They undergo a process of matruation and development in the
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Brian Moon Professor Agius Rhet 120-03 12/4/2012 Childhood Obesity: a problem Childhood obesity is not merely an issue in the United States- it is an epidemic. The number of overweight and obese children in America has increased at an alarming rate over the past years‚ and there is no chance of it slowing down unless action is taken. One out of three children is considered overweight or obese. A fast-food craze has swept over the country‚ consequentially
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rheumatology is many centuries old. The lessons of medical history‚ its triumphs and failures‚ its twists and turns‚ have all facilitated today’s science. Even in the ancient era some rheumatic diseases have been described with vivid accuracy. Among these are gout‚ spinal afflictions‚ osteoporosis and rheumatoid arthritis‚ as we recognize them today. Ancient systems of medicine such as Ayurveda in India led to the introduction of gold salts. Invention of the microscope paved the way to the birth of microbiology
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conditions is achieved by the coordination of all the organs and tissues. In the body positive‚ negative and feed-forward feedback mechanisms occur. Generally to maintain homeostasis the body uses the negative feedback mechanisms.There is a general homeostatic mechanism. It involves disruptors or stimuli‚ detectors or sensors‚ control system‚ efferent pathway and effectors. Certain disruptors produce a change in variable. The sensors sense the change. The information about the change is then sent to the
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of arthritis‚ diets play little or no role in precipitating or exacerbating the condition. However‚ in general‚ oils of fish have been shown to have anti-inflammatory properties. Some arthritis suffers benefit from omega-3 fatty acid supplements. Gout is a particular type of arthritis that is clearly diet-related. Foods that are high in purines‚ especially red meats and shellfish‚ can worsen the condition. Moreover‚ certain foods elevate the levels of uric acid‚ including alcohol (especially beer)
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