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Quiz 10

Quiz 10. Contraction of the smooth muscles in the walls of arterioles and rings of precapillary sphincters controls the flow of blood between arterioles and venules. In anaphylactic shock , a hyper-allergic reaction results in massive release of histamines

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Quiz 10

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  1. Quiz 10

  2. Contraction of the smooth muscles in the walls of arterioles and rings of precapillary sphincters controls the flow of blood between arterioles and venules. • In anaphylactic shock, a hyper-allergic reaction • results in massive release of histamines • which … dilate … capillaries … Humans are circulating ~… liters of blood through ~60,000 miles of capillaries with a total surface of ~1000 m2. At any given time, only about …% of the body’s capillaries have blood flowing through them. Quiz 10 Briefly, explain why a massive dilation of capillaries would result in less oxygen being delivered to the brain of a person with bee venom allergies standing there watching a bee sting them.

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