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Chapter 15

Anatomy

Valve/VesselFunction
tricuspid valve (between right atrium and right ventricle) prevents blood from moving from right ventricle back into right atrium during ventricular contraction
pulmonary semilunar valve (between right ventricle and pulmonary artery during ventricular relation) prevents blood from moving back from pulmonary artery into right ventricle
bicuspid (mitral) valve (between left atrium and left ventricle) prevents blood from moving from left ventricle during ventricular contraction
aortic semilunar valve (between left ventricle and aorta) prevents blood from moving back from aorta into the left ventricle during ventricular relaxation
artery carries high-pressure blood from heart to arterioles
arteriole connects artery to capillary; helps to control blood flow into capillary by underdoing vasoconstriction or vasodilation
capillary provides semipermeable membrane through which nutrients, gases, and wastes are exchanged between blood and tissues cells; connects arteriole to venule
venule connects capillary to vein
vein carries low-pressure blood from venule to heart; valves prevent backflow of blood; serves as blood reservoir
Created by: slccsat