Summary: Cardiovascular System Skip 2
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1.28 cardiovascular system skip 2
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capillary bed consist of type types of vessels:
vascular shunt
true capillaries -
vessel directly connectin an arteriole to a venule
vascular shunt -
vascular shunts help
vessel directly connecting an arteriole to a venule -
true capillaries traits
exchange vessels
oxygen and nutrients diffuse from blood to systemic tissues
carbon dioxide and nitrogenous wastes diffuse from systemic tissues into blood -
papillary sphincters are closed when
theres a low demand for blood -
pressure when ventricles relax
diastolic -
affected by age, weight, exercise, and emotional state
blood pressure -
amount of friction blood encounters as it flows through vessels
peripheral resistance -
narrowing blood vessels increases
peripheral resistence -
increase in blood viscosity (hemacrit)
increase peripheral resistence
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