40 - m sympathetic control acts through norepinephrine(NE...

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Sheet1 Page 1 Lecture 22: Cardiovascular System - Circulation and Blood Pressure II Reading: chapter 10, section: capillaries, pgs 351-358 (pgs 357-364, if using 5th edition) Arterioles - these small arterial branches form when arteries enter the organ they are supplying. They serve as the main sourc e intrinsic control ± (last lecture) extrinsic control - factors extrinsic to an organ or tissue that control arteriolar radius. These influences are both neural and hor
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Unformatted text preview: m sympathetic control - acts through norepinephrine (NE) release to contract arteriolar smooth muscle leading to vasoconstrictio n hormonal control epinephrine and norepinephrine - these hormones are released by the adrenal medulla in response to sympathetic stimulation vasopressin and angiotensin II - both of these hormones are potent vasoconstrictors and are released in response to hemorrh a...
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This note was uploaded on 10/29/2009 for the course NPB NPB 101 taught by Professor Weidner/wingfield during the Fall '08 term at UC Davis.

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