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Cardiovascular (Heart (Lungs (heart (systemic arteries (arterioles…
Cardiovascular
Heart
Lungs
heart
systemic arteries
arterioles
capillaries
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blood pressure control
Autoregulation
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Metabolic Theory - to keep pressures same- low pressure = dilation, or O2,pH,CO2
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Systemic BP Control
Humoral - circulating : Epi, histamine, angiotensin2
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if hypoxic, pH, CO2 - dilate
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Tricuspid, Pulmonic, Mitral, Aortic Valves
Pericardium, Myocardium, Endocardium
Cardiac Output
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Stroke Volume
Contractility (Inotropy)
Increase Calcium, C-AMP, Sympathetic Nervous System, + Inotropes
Decrease - Hypoxia, acidosis, beta blocker, Heart Failure
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