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17 November 2010 Diffusion Role of veins
Blood volume and blood pressure The Baroreceptor Reflex The Response to Hemorrhage
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1QQ # 29 for 8:30 Fenestrated capillaries are found in
The liver The digestive tract Skeletal muscles the brain Endocrine organs Smooth muscles in arterioles relax when Oxygen increases Carbon dioxide increases K+ concentration fall adenosine increases interstitial osmolarity increases.
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1QQ # 29 for 9:30 Discontinuous capillaries are found in
The liver The digestive tract Skeletal muscles the brain The spleen A change in metabolism that causes a change in blood flow to a vascular bed is called Flow autoregulation Mediated transport Metabolic autoregulation Myogenic autoregulation A Starling force.
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Diffusion, vesicle transport, bulk flow, mediated transport
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Diffusion is the most important mode of exchange of nutrients
Fig Diffusion is the most important mode of exchange of nutrients 12.40.jpg
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S 3 Figure 12.44 Veins are Capacitance vessels (high compliance) with valves for unidirectional flow Arteries are low compliance, so any increase in volume increases pressure.
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S 4 Fig MAP = CO x TPR Negative feedback control: stimulus, receptors, afferent pathway(s), integrator, efferent pathway(s), effector(s) response(s) 12.53.jpg
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S 5 Fig 12.54.jpg
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A Neuroscientist in New Orleans
Story Time S 6 A Neuroscientist in New Orleans
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Test 3 Hemorrhage Diagram
One the back side of this page, create a diagram for the following. Your response must be confined to the reverse side of this page and you must write legibly. Your response will count 15-20% of the grade on Test 3 and should require no more than ten minutes to complete at the beginning of the test. Beginning with a loss of about 1 liter of blood from a vein, diagram the early events associated with hemorrhage and the negative feedback responses to hemorrhage in a well-organized diagram. Write legibly! Completeness, accuracy, and detail, together with the proper sequence earn maximal points. The following abbreviations can be used: mAChR, Hct, Q, SV, RBC, HR, EDV, ACh, ANH, ADH, CO, TPR, EPO, VR, MAP, EPI, NE, SAN, aAdR , bAdR, Symp (sympathetic), Parasymp (parasympathetic), PV, r (radius), Pc, fAP (frequency of action potentials.) Any other abbreviations must be defined. "If in doubt, write it out!" Use single headed arrows (→) to indicate sequential relationships and doubled-stemmed arrows to indicate increases or decreases.
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