exercise_cardio_topic_10

exercise_cardio_topic_10 - The Cardiovascular System:...

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The Cardiovascular System: Autoregulation and Capillary Dynamics 1.  a. What regulates the flow of blood into true capillaries? ________________ b. If all sphincters are closed, blood is ___________ to the venules through  _____________ capillaries. 2.  Use arrows to show whether high or low levels of the following would cause the feeder arterioles to dilate  and the sphincters to relax: a. O 2  ________ c. pH ________ b. CO 2  ________ d. nutrients ________ 3.  Physical factors also act as regulatory stimuli.  How would the following affect arterioles? a. Decreased blood pressure ____________________ b. Increased blood pressure ____________________ 4.  Name three structural characteristics of capillaries which allow for passage of materials out of the  capillaries. a. b. c. 5. a. Diffusion accounts for the passage of _________________________. b. Non-lipid soluble molecules move by _________________________.
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This note was uploaded on 02/22/2009 for the course BIO 203 taught by Professor Johncabot during the Spring '08 term at SUNY Stony Brook.

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exercise_cardio_topic_10 - The Cardiovascular System:...

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