Chapter 42 (Circulation) Notes

Chapter 42 (Circulation) Notes - CIRCULATORY SYSTEM...

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CIRCULATORY SYSTEM FUNCTION • transport of O2, CO2, nutrients, cellular wastes, regulatory molecules, immune cells REMEMBER EVOLUTIONARY TRENDS ! 4 chambers supports: high metabolism; endothermy (heat production); increased body size;  flight OPEN circulation-  HEMOLYMPH tissue spaces CLOSED  circulation- blood enclosed in blood vessels COUNTERCURRENT  heat exchange                 2chambers                  3 chambers             4 chambers                 single loop                    double loop             double loop STRUCTURE ATRIA  (sing. ATRIUM) on top-receive blood VENTRICLES  on bottom- receive from atria; main pumping chambers        Left Ventricle wall THICKER- has to pump to all of body        Right ventricle wall thinner- just pumps to lungs nearby
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This note was uploaded on 02/11/2012 for the course ZOOLOGY 152 taught by Professor Stephengammie during the Fall '11 term at Wisconsin.

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Chapter 42 (Circulation) Notes - CIRCULATORY SYSTEM...

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