Ch 12 #2

Question 1

auditory area

Answer 1

temporal lobe

Question 2

primary sensory cortex

Answer 2

parietal lobe

Question 3

somatic motor cortex

Answer 3

frontal lobe

Question 4

motor speech area

Answer 4

frontal lobe

Question 5

premotor area

Answer 5

frontal lobe

Question 6

visual area

Answer 6

occipital lobe

Question 7

language/speech

Answer 7

temporal lobe

Question 8

taste area

Answer 8

insula

Question 9

intelligence/abstract reasoning

Answer 9

frontal lobe

Question 10

A major relay station for 
sensory information 
ascending to primary sensory 
areas of the cerebral cortex. 
Contains many specialized 
nuclei

Answer 10

thalamus

Question 11

This brain area associates
experiences necessary for the
production of abstract ideas,
judgment, and conscience.

Answer 11

prefrontal area

Question 12

The axons from this area form

the major pyramidal tracts.

Answer 12

primary motor cortex

Question 13

This area is the main visceral

control center of the body

Answer 13

hypothalamus

Question 14

The stage when vital signs
(blood pressure, heart rate,
and body temperature) reach
their lowest normal levels.

Answer 14

stage 4

Question 15

Indicated by movement of the
eyes under the lids; dreaming
occurs.

Answer 15

REM

Question 16

Theta and delta waves begin

to appear.

Answer 16

stage 3

Question 17

Very easy to awaken; EEG
shows alpha waves; may even
deny being asleep.

Answer 17

stage 1

Question 18

Typified by sleep spindles.
Diff: 1 Page Ref: 459; Fig. 12.21
37) Begins about 90 minutes after
the onset of sleep.

Answer 18

stage 2

Question 19

Necessary for emotional
health; may be neural
ʺdebugging.ʺ

Answer 19

REM

Question 20

amino acid neurotransmitters

Answer 20

glycine and GABA

Question 21

catecholamines

Answer 21

dopamine and norinephrine

Question 22

enkephlain and endorphin

Answer 22

peptide transmitters

Question 23

What function is served by the increased axon diameter at the nodes of Ranvier?

Answer 23

results in increased speed of impulse propagation.

Question 24

Multiple sclerosis (MS) is a disease in which the myelin sheaths are destroyed. What process 
does this interfere with and what would be the consequence?

Answer 24

Demyelination interferes with saltatory conduction, which would result in a slowing
down of nerve impulse propagation.