Human Physiology   7/e   Vander/Sherman/Luciano
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Chapter 7: Homeostatic Mechanisms and Cellular Communication


Critical Thinking Activities

Chapter 7: Homeostatic Mechanisms and Cellular Communication

  1. Why is it possible to successfully vaccinate a person after a bite from a rabid dog? Most vaccines are only effective before the exposure to the germ.

    Answer

  2. Most anesthesias are fat-soluble. What does this suggest about the chemical nature of myelin?

    Answer

  3. Why would cholecystokinin (i.e. CCK), delivered to the brain be a great weight-control drug?

    Answer

  4. Why can't CCK be given orally to prevent obesity?

    Answer

  5. Viagratm is a drug used to promote erections in impotent men. What neurotransmitter do you think it would enhance?

    Answer

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