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Quiz 10 PowerPoint Presentation

Quiz 10

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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.