Human Anatomy and Physiology 260 - Midterm 1 Cardiovascular Anatomy Arteries: • Carry Blood from the heart to the tissues • Gradually decreasing in size of vessels o Arteries - Transportation of red blood cells away from the heart o Arterioles - Smaller‚ lead from the arteries to the capollaries o Capillaries - Gas exchange (tissue level) • 3 layers of wall: o 1. Tunica Adventitia (Tough outer layer) o 2. Turnica media (Middle smooth muscular layer‚ changes the diameter of the blood
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you drink coffee‚ the caffeine is absorbed into the bloodstream. From there‚ it travels into the brain. In the brain‚ caffeine blocks an inhibitory neurotransmitter called Adenosine. When that happens‚ the amount of other neurotransmitters like norepinephrine and dopamine actually increases‚ leading to enhanced firing of
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Cushing Syndrome Sometimes called hypercortisolism. Cushing s syndrome is a hormonal disorder caused by prolonged exposure of the body s tissues to high levels of the hormone cortisol. Causes Pituitary Adenoma Pituitary adenomas cause 70 percent of Cushing s syndrome cases‚ excluding those caused by glucocorticoid use. These benign‚ or noncancerous‚ tumors of the pituitary gland secrete extra ACTH. Most people with the disorder have a single adenoma. Ectopic ACTH Syndrome Some benign
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The endocrine system The endocrine system is a collection of ductless glands which are positioned through the whole body. The endocrine glands pass their secretions of hormones directly into the blood stream so that they are always adjacent to blood vessels. Hormones are chemicals in the body produced and secreted in the body that regulate the function of a particular tissue or organ (Bing dictionary). These chemical messengers transfer information from one set of cells to another. Despite many
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Characterization of LIC13341 and its orthologs. The CDS LIC13341 from L. interrogans Copenhageni genome was cloned without its predicted signal peptide in pET28a expression vector and induced its expression in E. coli BL21. Induction of protein expression was evaluated using 0.5 mM IPTG where recombinant protein (43 kDa) overexpression was remarkably observed (Fig 2A). In order to further characterize LIC13341‚ polyclonal antibodies were generated in BALB/c mice against r-LIC13341. To check its
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HEALTH PSYCHOLOGY REVIEW QUESTIONS 1. What is the field of health psychology? Identify and explain three reasons why this field emerged. The field of health psychology is a new division of the American Psychological Association (1978) that stated that health and illness are influenced by biology and psychological and social factors It is focused on promoting and maintaining health as well as prevention of illnesses and treatment The three reasons why this field emerged are: Shift in
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Cold pressor test is widely used as test for auto- nomic functions. It has been used as diagnostic test for diseases like hypertension and other cardiac auto- nomic disorders. During cold pressor test ‚ the hand or foot is immersed in cold water bath held at a con- stant temperature at 80 C. Cold water immersion activates afferent pain and temperature neurons‚ re- sulting in a centrally mediated stimulation of sympa- thetic efferent neurons. In healthy subjects ‚ the CPT causes increase
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Running head: ADDISON ’S DISEASE 1 Addison ’s Disease ADDISON ’S DISEASE 2 Abstract Addison ’s disease is a disorder that occurs when a person ’s adrenal glands produce insufficient amounts of certain hormones. When Addison ’s diseased was first discovered the endocrine system was not yet completely
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1. Which was a fundamental problem with behaviorism? a. Not all learning comes from direct rewards b. Operant conditioning was not a valid form of learning c. Behaviorist methods were subjective d. None of the above 2. Which learning mechanism is based on rewarding and punishing voluntary behavior? a. Classical Conditioning b. Constructivism c. Rehearsal d. Operant conditioning 3. Which psychological theory maintains that the whole is greater than the sum of its parts? a. Associationism
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The Effect of Temperature and Epinephrine on The Heart Rate of Daphnia Leslie Orzetti-Gollhofer Gaby Macias INTRODUCTION The Daphnia is a Crustacean other known as the water flea. It lives in small bodies of freshwater. The Daphnia is ectothermic‚ meaning it controls its body temperature through external means. With this experiment we experienced first hand what the effect temperature has on a Daphnia’s heart rate. We also experimented what effect epinephrine has on a Daphnia’s heart rate.
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