Chp 2

Question 1

two divisions of the peripheral nervous system

Answer 1

somatic and autonomic

Question 2

somatic nervous system

Answer 2

consists of nerves that interconnect the brain and major muscles and sensory systems of the body

Question 3

autonomic nervous system

Answer 3

consists of he nerves that connect to the viscera

Question 4

two divisions of somatic nervous system and how many of each?

Answer 4

cranial nerves and spinal nerves

12 PAIRS of cranial nerves and 31 PAIRS of spinal nerves

Question 5

cranial nerve 1

Answer 5

olfactory (smell)

sensory

Question 6

cranial nerve 2

Answer 6

optic (vision)

sensory

Question 7

cranial nerve 3

Answer 7

oculomotor (moves eye)

motor

Question 8

cranial nerve 4

Answer 8

trochlear (moves eye)

motor

Question 9

cranial nerve 5

Answer 9

trigeminal (face, sinuses, e teeth), sensory
AND
jaw muscles, motor

Question 10

cranial nerve 6

Answer 10

abducens (moves eye)

motor

Question 11

cranial nerve 7

Answer 11

facial (tongue, palate, facial muscles, salivary glands, tear glands)
sensory and motor

Question 12

cranial nerve 8

Answer 12

vestibulocochlear (hearing and balance)

sensory

Question 13

cranial nerve 9

Answer 13

glossopharyngeal
(taste and mouth sensations), sensory
(throat muscles) motor

Question 14

cranial nerve 10

Answer 14

Vagus (internal organs/viscera)

sensory and motor

Question 15

cranial nerve 11

Answer 15

spinal accessory (neck muscles)
motor

Question 16

cranial nerve 12

Answer 16

hypoglossal (tongue muscles)

motor

Question 17

motor fibers project from the __ part of the spinal cord

Answer 17

ventral

Question 18

sensory fibers enter from the __ part of the spinal cord

Answer 18

dorsal

Question 19

what are the 5 divisions of the spinal cord (top to bottom)

Answer 19

cervical
thoracic
lumbar
sacral
coccygeal

Question 20

How many pairs of nerves are in each of the 5 divisions of the spinal cord

Answer 20

8 cervical
12 thoracic
5 lumbar
5 sacral
1 coccygeal

Question 21

two divisions of the autonomic nervous system and what they do

Answer 21

sympathetic (fight or flight)

parasympathetic (rest and digest)

Question 22

the sympathetic nerves come from the __ regions while the parasympathetic nerves come from the __ regions

Answer 22

middle; top and bottom

Question 23

ridges of the cerebral cortex

Answer 23

gyri (gyrus)

Question 24

crevices of the cerebral cortex

Answer 24

sulci (sulcus)