Ch 8: Online 1

Question 1

What is gray matter in the spinal cord?

Answer 1

Cell bodies of motor neurons

Question 2

What is white matter in the spinal cord?

Answer 2

ascending (or sensory) tracts

Question 3

What nerve in the brain controls sight?

Answer 3

Optic nerve

Question 4

What nerve in the brain controls intestinal peristalsis?

Answer 4

Vagus nerve

Question 5

What nerve in the brain controls secretion of saliva?

Answer 5

Facial and glossopharyngeal nerves

Question 6

What nerve in the brain decreases the heart rate?

Answer 6

Vagus nerve

Question 7

What nerve in the brain moves the tongue?

Answer 7

Hypoglossal nerve

Question 8

What is the site of action of a neurotransmitter?

Answer 8

Synapse

Question 9

What is depolarization followed by repolarization?

Answer 9

Action potential

Question 10

What permits regeneration of a neuron?

Answer 10

Neurolemma in the PNS

Question 11

What neurons are involved in a reflex arc?

Answer 11

Interneurons within the CNS

Question 12

What part of the brain regulates breathing and blood pressure?

Answer 12

Medulla

Question 13

What part of the brain initiates voluntary movement?

Answer 13

Frontal lobes

Question 14

What part of the brain sees and interprets what is seen?

Answer 14

Occipital lobes

Question 15

What part of the brain regulates appetite and water balance?

Answer 15

Hypothalamus