1-21-10- Circulation continued Worksheet 3

1-21-10- Circulation continued Worksheet 3 - o Fluid moves...

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BSC2011 SI: 1/21/10 Worksheet 3 – Circulation continued Peripheral Control of Circulation Nervous Control o Resistance is proportional to 1radius4 . What does this mean? o Vasoconstriction vs. Vasodilatation Vasoconstriction Vasodilatation Diameter of blood vessel Resistance to blood flow o The vasodilatory center (does/ does not) actively dilate blood vessels. o Which blood vessels are most likely to change in diameter? o __________________________- responsible for the control of how much blood goes where at different times. Controlled by neurons or hormones. Hormonal Control Hormone Vasoconstrictor/Vas odilator Type Site of Production What stimulates its release? Vasopressin Angiotensin Endothelin Atrial Natriuretic Peptide Nitric Oxide Prostaglandin s Reasons why control of blood flow and blood pressure is of importance
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BSC2011 SI: 1/21/10 1. ______________________ of tissues- it is necessary to have a constant flow of blood to tissues and organs 2. Formation of lymph o What is lymph? o __________________________________ controls the circulation of lymph.
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Unformatted text preview: o Fluid moves from __________________ to _______________________ pressure. o When blood pressure is higher than osmotic pressure there is a net (inward/outward) flow. o When blood pressure is lower than osmotic pressure there is a net (inward/outward) flow. o In the ______________________ end of blood vessels you make more lymph than is reabsorbed in the ___________________________ end. Where does this non-reabsorbed lymph go? o The system can be altered in 3 ways: 1. Alter blood pressure. An increase in blood pressure leads to an (increase/decrease) in lymph formation. This results in: 2. Alter blood proteins. A fall in blood proteins leads to an (increase/decrease) in lymph formation. Why? This results in: 3. Alter lymph pressure. A fall in lymphatic vessel return leads to excess lymph. This condition is called __________________________ because it causes lymph to pool in extracellular spaces. This results in:...
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This note was uploaded on 03/30/2010 for the course BSC BSC2011 taught by Professor Evans during the Spring '10 term at École Normale Supérieure.

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1-21-10- Circulation continued Worksheet 3 - o Fluid moves...

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