CH 3 Summary

Question 1

The vertebrate nervous system has two main divisions

Answer 1

the central nervous system and the peripheral nervous system.

Question 2

Each segment of the spinal cord has a sensory nerve and a motor nerve on both the left and right sides.

Answer 2

Spinal pathways convey information to the brain.

Question 3

The sympathetic nervous system (one of the two divisions of the autonomic nervous system) activates the body’s internal organs for vigorous activities.

Answer 3

The parasympathetic system (the other division) promotes digestion and other nonemergency processes.

Question 4

The central nervous system consists of

Answer 4

the spinal cord, the hindbrain, the midbrain, and the forebrain.

Question 5

The hindbrain consists of the medulla, pons, and cerebellum. The medulla and pons control breathing, heart rate, and other vital functions through the cranial nerves.

Answer 5

The cerebellum contributes to movement, timing short intervals, and certain types of learning and conditioning.

Question 6

The cerebral cortex receives its sensory information, except for

Answer 6

olfaction, from the thalamus.

Question 7

The subcortical areas of the forebrain include the

Answer 7

thalamus, hypothalamus, pituitary gland, basal ganglia, and hippocampus.

Question 8

The cerebral ventricles contain fluid that provides

Answer 8

buoyancy and cushioning for the brain.