BIOS 1030 Lecture Notes - Lecture 8: Pulmonary Vein, Pulmonary Circulation, Muscular Layer
8 Jan 2018
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Document Summary
Endothelial cells, elastic layer, smooth muscle, connective tissue. Made of a single layer of epithelial cells. The site of exchange between blood and cells. Where small venules and arterioles meet (arterioles control bp) Thin muscle layer (a way you can tell it apart from an artery) Some veins go use gravity to bring blood back to the heart. Keeping blood in the veins going in the right direction. Always enters in atrium, goes through ventricle, leaves the heart. Pumped by the right side of the heart. Pumped by the left side of the heart. Goes to heart, brain, skeletal muscle, kidneys, liver/gi, and skin. Sa node: acts as the synthetic pacemaker, located on the wall of the right atrium. Right atrium --> right ventricle --> pulmonary arteries --> lungs--> pulmonary veins --> left atrium --> left ventricle-aorta --> capillaries/cells --> inferior-superior vena cava (exchanging blood) Leading cause of death from cardiovascular disease (cvd):
