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Nervous Tissue Practice Problems

By — McGraw-Hill Professional
Updated on Aug 18, 2011

Review these concepts if necessary:

Nervous Tissue Practice Problems

Practice—True or False

  1. There are basically only two different cell types in the nervous system. 
  2. Apolarized nerve fiber has an abundance of sodium ions on the outside of the axon membrane. 
  3. All synapses are inhibitory. 
  4. The myelin sheath surrounds the dendrites. 
  5. Motor neurons convey information from receptors in the periphery to the CNS. 
  6. The sodium pumps operate by diffusion, and thus requires no ATP for its operation. 

Answers

  1. False
  2. True
  3. False
  4. False
  5. False
  6. False

Practice—Completion

  1. Within the peripheral nervous system, myelin is formed by the _____. 
  2. Ajunction between two neurons, where the electrical activity of the first influences the excitability of the second is called a _____. 
  3. When an action potential depolarizes the synaptic knob, small quantities of transmitter substance are released into the _____ _____. 

Answers

  1. neurolemmocytes or Schwann cells
  2. synapse
  3. synaptic cleft
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