Quiz 7: The Nervous System

Question 1

What type of neuron connects sensory and motor neurons in neural pathways?

Answer 1

Interneurons (association neurons)

Question 2

What are the major positive ions situated outside the neuron when it is polarized?

Answer 2

Sodium ions

Question 3

The brain and spinal cord are protected and cushioned by three connective tissue membranes that are collectively called ________.

Answer 3

Meninges

Question 4

Mr. Warren has spinal cord damage that prevents nerve impulses from being carried from the CNS to muscles or glands. What specific type of neuron has been damaged?

Answer 4

Motor neuron

Question 5

Sensory receptors located in muscles and tendons are termed ________.

Answer 5

Proprioceptors

Question 6

The gaps between Schwann cells found at regular intervals in peripheral system neurons are called ________.

Answer 6

Nodes of Ranvier

Question 7

The thalamus, hypothalamus, and epithalamus collectively constitute the ________.

Answer 7

Diencephalon interbrain

Question 8

During repolarization, what ions are pumped out of the cell?

Answer 8

Sodium

Question 9

Myelinated fibers (tracts) form ________ matter while unmyelinated fibers form ________ matter.

Answer 9

• White

* Gray

Question 10

The part of the neuron that typically conducts nerve impulses away from the cell body is the ________.

Answer 10

Axon