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physio revision points

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L9
Pressures :
P_ip is +ve and > P_alv in active expiration ; as it limits bronchial air flow
Reverse in active inspiration to act as a suction cup to overly inflate the lungs
STL PCS = sympathetic thoraco lumbar
Angiotensin II inc SV, raises BP , vasoconstrictor, stimulates aldosterone {heart contractiler + inc BV BP} ,
stimulates thirst center, ADH release and increasing of water intake
ANP dec BP n BV
6. The type of hypoxia caused by pulmonary embolism . A. arterial hypoxia
Cl- principal anion in intracellular fluid
Adrenal medulla – sympathetic preganglionic cholinergic fibers
Systemic venodilation dec venous return
Stimulation of aortic baroreceptor will result in inc activity of parasympathetic system
NO plays main role in GFR inc
Primary H+ sec – intercalated ; 2ndary H+ sec - PCT
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