Critical Thinking Activities - Chapter 7 Answers

  1. Reverse movement of the rabies virus up the axon by axonal transport is relatively slow, oftentimes giving the body a respite in which it can produce the disease-fighting antibodies. (151)

  2. Myelin is probably largely made up of some type of lipid.

  3. It acts as a brain neurotransmitter to cause a person to feel very satisfied. (177)

  4. CCK is a polypeptide and will be broken down in the digestive track before it has a chance to enter the blood stream. Read 177 to know that CCK is a polypeptide: you would also need to read the digestion chapter to know that about polypeptide digestion.

  5. Nitric oxide (NO) (179)

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