Book Work after Reproduction Test

Start on page 960 in old text

1. Define the following:

Central nervous system, effector cells, nerves, peripheral nervous system

2.  Define the main parts of a neuron:  cell body, dendrite, axon, myelin sheath, Schwann cell, synaptic terminal

3.  Draw a vertebrate neuron and label the above parts

4.  List the 3 classes of neurons and their functions?

5.  What is a reflex?  Describe the knee-jerk reflex in detail.

6.  What are "glia" and what is their purpose?
7.  What is the importance of the blood-brain barrier?
8.  What is the purpose of the myelin sheath around axons?  What disorder involves the degradation of this sheath?
9.  What is membrane potential and what causes it?
10.  How do ion channels affect the membrane potential?
11.  What are the resting potential and action potential of a neuron and what do they have to do with polarization and depolarization?

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