Nervous System Quiz

Question 1

cerebral hemispheres (cerebrum)

Answer 1

• Paired left and right hemispheres

- Surface made of ridges (gyri) and grooves (sulci)

Question 2

Lobes of the Cerebrum

Answer 2

Deep fissures separate the lobes

Question 3

Somatic Sensory Area

Answer 3

-Impulses from receptors (except special senses) are interpreted here
-Allows you to recognize:
~Pain
~Coldness
~Light touch

Question 4

Primary motor area

Answer 4

allows us to move our skeletal muscles

Question 5

Broca’s Area

Answer 5

• allows you to “say” words

- Higher intellectual reasoning

Question 6

Speech area

Answer 6

allows you to sound out words

Question 7

Cerebral white matter

Answer 7

• Deep in cerebrum

- Composed of fiber tracts that carry impulses to and from cortex

Question 8

Corpus callosum

Answer 8

• Large fiber tract area between cerebral hemispheres

- Allows them to communicate with each other

Question 9

Gray matter

Answer 9

regulates voluntary motor activities

Question 10

Diencephalon

Answer 10

consists of three parts:

• thalamus
• hypothalamus
• epithalamus

Question 11

thalamus

Answer 11

• relay station for sensory impulses

- transfer to correct location for interpretation

Question 12

hypothalamus

Answer 12

­autonomicnervoussystemcenter
regulatesbodytemp,waterbalance,regulatesmetabolism,
pleasurecenter,thirst,appetite,sex,pain
partoflimbicsystem(emotions)
regulatespituitarygland(locatedunderneathit)
mammillarybodies-reflexcentersinvolvedinolfactionbulgefromthefloorposterior topituitarygland

Question 13

epithalamus

Answer 13

-forms roof of third ventricle
­-houses the pineal body (endocrine gland)
-Secretes melatonin (aids in sleep)
­-includes choroid plexus ­ forms cerebral
spinal fluid

Question 14

brain stem

Answer 14

attaches to spinal cord

-three areas (midbrain, pons, medulla oblongata)

Question 15

midbrain

Answer 15

made of tracts of nerve fibers

Question 16

cerebral aqueduct

Answer 16

canal that travels through the midbrain and connects the third and fourth ventricles

Question 17

pons

Answer 17

controls breathing

Question 18

Medulla Oblongata

Answer 18

Functions as an important control center:
• heart rate
• breathing
• blood pressure regulation • swallowing
• vomiting

Question 19

Reticular formation

Answer 19

­ motor control of visceral organs

­plays role in sleep/awake cycles consciousness

Question 20

Cerebellum

Answer 20

­ involunary coordination of body movements

­ times skeletal muscle, controls balance and equilibrium