Nervous System Structural Description

Question 1

Which of the following describes the structural division of the nervous system
A-somatic vs autonomic
B-central vs peripheral
C-sympathetic vs parasympathetic

Answer 1

Central vs peripheral

Question 2

What is the number of cervical vertebra and cervical spinal nerves?
A-7 vertebra, 7spinal nerves
B-7vertebra, 9 spinal nerves
C-7 vertebra, 8 spinal nerves

Answer 2

7 vertebra, 8 spinal nerves

Question 3

The somatic and autonomic nervous system are parts of the
A-peripheral nervous system
B-central nervous system
C-afferent system

Answer 3

Peripheral nervous system

Question 4

The peripheral nervous system carries impulses
A-toward the central nervous system (CNS)
B-away from the CNS
C-both a and b

Answer 4

Both a and b

Question 5

A bundle of nerve fibers outside the CNS is called
A-nerve
B-ganglion
C-neurolemma

Answer 5

Nerve

Question 6

A ganglion is a collection of
A-myelinated nerve fibers
B-neuron cell bodies
C-unmyelinated nerve fibers

Answer 6

Neuron cell bodies

Question 7

Afferent fibers carry impulses
A-toward the CNS
B-Away from the CNS
C-to muscles

Answer 7

Toward the CNS

Question 8

Efferent fibers carry impulses
A-toward the CNS
B-away from the CNS
C-from receptors

Answer 8

Away from CNS

Question 9

Peripheral nerves are either cranial or spinal
A-true
B-false

Answer 9

True

Question 10

Which answer is true about cranial nerves?
A-there are 31 pairs
B-are numbered with roman numerals
C-have two nerve roots

Answer 10

Are numbered with Roman numerals

Question 11

Which answer is true about spinal nerves?
A-exit above or below the vertebra of the same number
B-exit the cranium through foramina
C-Only carry efferent fibers

Answer 11

Exit above or below the vertebra of the same number

Question 12

Dorsal nerve roots carry which type of fibers?
A-motor
B-sensory
C-both

Answer 12

Sensory

Question 13

Dorsal primary rami supply
A-the trunk and upper an lower extremities
B-the organs of the body
C-back muscles and skin

Answer 13

Back muscles and skin

Question 14

Ventral primary rami supply
A-The trunk and upper and lower extremities
B-the organs of the body
C-back muscles and skin

Answer 14

The trunk and upper and lower extremities

Question 15

Somatic nerve plexuses are made up of
A-combining dorsal primary rami
B-combining autonomic nerves
C-combining ventral primary rami

Answer 15

Combining ventral primary rami

Question 16

Which spinal level does not form plexuses?
A-cervical
B-thoracic
C-lumbar

Answer 16

Thoracic

Question 17

A dermatome is an
A-area of skin supplied by a dorsal rami
B-area of skin supplied by a single spinal nerve
C-area of skin supplied by a ventral rami

Answer 17

Area of skin supplied by a single spinal nerve

Question 18

A cutaneous nerve carries
A-sensory information from skin
B-motor glands
C-both

Answer 18

Both

Question 19

General visceral afferent fibers carry
A-sensations from organs and blood vessels to the CNS
B-impulses to involuntary muscles and glands
C-sensation from skin and muscles

Answer 19

Sensations from organs and blood vessels to the CNS

Question 20

General somatic efferent fibers carry
A-impulses to involuntary muscles and glands
B-impulses to skeletal muscles
C-sensation from skin and muscles

Answer 20

Impulses to skeletal muscles