Peripheral Nervous System

Question 1

somatic motoneurons:

cell body location

Answer 1

CNS: spinal cord & brainstem (ventral position)

Question 2

somatic motoneurons:

function

Answer 2

innervate skeletal muscle

Question 3

visceral motoneurons:
sympathetic preganglionics:
cell body location

Answer 3

CNS: thoracolumbar spinal cord (intermediate & lateral position)

Question 4

visceral motoneurons:
sympathetic preganglionics:
function

Answer 4

organized to mobilize the body for activity
involuntary responses including those anticipating maximal exertion
provides vascular, glandular, & metabolic adjustments optimizing responses in conditions requiring activity

Question 5

visceral motoneurons:
sympathetic postganglionics:
cell body location

Answer 5

PNS: paravertebral (chain ganglia & cervical ganglia) & prevertebral ganglia (neuronal cell body distant from target)

Question 6

visceral motoneurons:
sympathetic postganglionics:
function

Answer 6

organized to mobilize the body for activity
involuntary responses including those anticipating maximal exertion
provides vascular, glandular, & metabolic adjustments optimizing responses in conditions requiring activity

Question 7

visceral motoneurons:
parasympathetic preganglionics:
cell body location

Answer 7

CNS: brainstem & sacral cord

Question 8

visceral motoneurons:
parasympathetic preganglionics:
function

Answer 8

organized for energy conservation:
involuntary responses generally reflecting visceral function under relaxed conditions
reduces energy expenditure & increases energy stores

Question 9

visceral motoneurons:
parasympathetic postganglionics:
cell body location

Answer 9

PNS: cranial nerve ganglia (III, VII, IX, X)

enteric & pelvic ganglia or plexuses (neuronal cell body near or in target)

Question 10

visceral motoneurons:
parasympathetic postganglionics:
function

Answer 10

organized for energy conservation:
involuntary responses generally reflecting visceral function under relaxed conditions
reduces energy expenditure & increases energy stores

Question 11

sensory neurons (somatic & visceral):
cell body location

Answer 11

PNS: dorsal root ganglia, cranial nerve ganglia

Question 12

sensory neurons (somatic & visceral):
function

Answer 12

transduce information about diverse stimuli & carry it from periphery or within body to spinal cord & brain

Question 13

PNS glial cell types (2)

Answer 13

satellite cells

schwann cells

Question 14

satellite cells:

location

Answer 14

within peripheral ganglia surrounding neurons cell bodies

Question 15

satellite cells:

function

Answer 15

support

response to injury

Question 16

schwann cells:

location

Answer 16

along neuronal processes

Question 17

schwann cells:

function

Answer 17

support
response to injury
myelination