Question 1

The anterior ramus of a typical spinal nerve innervates the

Accepted Answer

A)  deep muscles of the back and the skin of the back.
B)  major thoracic and abdominal organs.
C)  abdominal wall.
D)  anterior and lateral trunk and the limbs.
E)  special senses.F) A) and E)
G) C) and E)

Question 2

The simple knee-jerk reflex is an example of a(n) _____ reflex.

Accepted Answer

A)  ipsilateral
B)  contralateral
C)  monosynaptic
D)  crossed-extensor
E)  multisynapticF) A) and B)
G) None of the above

Question 3

These nuclei are located in the lateral horns and innervate smooth muscle,cardiac muscle,and glands.

Accepted Answer

A)  Sensory nuclei
B)  Autonomic motor nuclei
C)  Visceral sensory nuclei
D)  Somatic sensory nuclei
E)  Somatic motor nucleiF) A) and B)
G) B) and E)

Question 4

The _______ nuclei within the gray matter of the spinal cord send nerve impulses to skeletal muscles.

Accepted Answer

A)  visceral sensory
B)  somatic sensory
C)  autonomic motor
D)  somatic motorE) A) and B)
F) A) and C)

Question 5

Which of these spinal nerve counts is incorrect

Accepted Answer

A)  Thoracic nerves = 8 pairs
B)  Cervical nerves = 8 pairs
C)  Lumbar nerves = 5 pairs
D)  Sacral nerves = 5 pairs
E)  Coccygeal nerves = 1 pairF) B) and E)
G) None of the above

Question 6

In adults,the spinal cord is not the same length as the vertebral canal,and most of the lumbar part of the spinal cord is within

Accepted Answer

A)  the coccyx.
B)  the sacrum.
C)  the cervical vertebrae.
D)  the thoracic vertebrae.
E)  the cauda equina.F) C) and D)
G) All of the above

Question 7

A person suffering from carpal tunnel syndrome has lost function of the

Accepted Answer

A)  median nerve.
B)  radial nerve.
C)  musculocutaneous nerve.
D)  ulnar nerve.
E)  axillary nerve.F) B) and D)
G) C) and D)

Question 8

Motor pathways are _________ tracts that control _________.

Accepted Answer

A)  ascending,affectors
B)  ascending,effectors
C)  descending,affectors
D)  descending,effectorsE) None of the above
F) B) and D)

Question 9

The tapered,conical inferior end of the spinal cord is called the conus

Accepted Answer

A)  finalis.
B)  medullaris.
C)  equine.
D)  caudalis.
E)  sacralis.F) C) and E)
G) C) and D)

Question 10

The innermost of the meninges is the pia mater.

Accepted Answer

A) True 
 B)False

Question 11

If a person suffers a thorax-crushing injury and is unable to breathe properly,you would suspect that this nerve was damaged.

Accepted Answer

A)  Transverse cervical nerve
B)  Accessory nerve
C)  Phrenic nerve
D)  Sciatic nerve
E)  Greater auricular nerveF) B) and D)
G) None of the above

Question 12

A monosynaptic response is one that does not involve an interneuron.

Accepted Answer

A) True 
 B)False

Question 13

The cell bodies of sensory neurons are located in the

Accepted Answer

A)  posterior root ganglion.
B)  anterior funiculus.
C)  gray commissure.
D)  anterior horn.
E)  posterior funiculus.F) D) and E)
G) A) and C)

Question 14

If a patient experiences numbness in the boundaries of a dermatome,it is suggestive of damage to

Accepted Answer

A)  the somatosensory cortex.
B)  the thalamus.
C)  one of the spinal funiculi.
D)  the anterior horn of grey matter in the spinal cord.
E)  a spinal nerve.F) A) and B)
G) A) and C)

Question 15

The tectospinal tract is part of the medial pathway,which is an indirect motor pathway.

Accepted Answer

A) True 
 B)False

Question 16

Usually,awareness of the stimulus occurs before a reflex action has been initiated.

Accepted Answer

A) True 
 B)False

Question 17

Nuclei within the gray matter of the spinal cord that receive information from sensory receptors such as pain or pressure receptors in the skin are _____ nuclei.

Accepted Answer

A)  visceral sensory
B)  somatic sensory
C)  autonomic motor
D)  somatic motorE) A) and D)
F) A) and C)

Question 18

The second thoracic spinal nerve exits the spinal column through the

Accepted Answer

A)  vertebral canal of vertebrae T1,T2,and T3.
B)  sacral hiatus.
C)  intervertebral foramen between vertebrae T2 and T3.
D)  intervertebral foramen between vertebrae T1 and T2.E) B) and C)
F) A) and B)

Question 19

Axons of the corticobulbar tracts

Accepted Answer

A)  descend in the lateral funiculus of the spinal cord and synapse with anterior horn motor neurons.
B)  descend in the anterior funiculus of the spinal cord and synapse with lateral horn motor neurons.
C)  do not pass through the spinal cord,as they synapse with lower motor neurons in brainstem cranial nuclei.
D)  do not pass through the spinal cord,as they synapse with cerebellar Purkinje cells.
E)  connect the supplementary motor cortex with the primary motor cortex.F) D) and E)
G) A) and E)

Question 20

The axons of primary sensory neurons make synaptic connections with

Accepted Answer

A)  posterior root ganglia of spinal nerves.
B)  secondary neurons in the CNS.
C)  secondary neurons in the PNS.
D)  thalamic neurons.E) A) and C)
F) All of the above

Exam 14: Nervous System: Spinal Cord and Spinal Nerves

Motor pathways are _________ tracts that control _________.

Correct AnswerverifiedShow Answer

The anterior ramus of a typical spinal nerve innervates the

Correct AnswerverifiedShow Answer

The _______ nuclei within the gray matter of the spinal cord send nerve impulses to skeletal muscles.

Correct AnswerverifiedShow Answer

The innermost of the meninges is the pia mater.

Correct AnswerverifiedShow Answer

The cell bodies of sensory neurons are located in the

Correct AnswerverifiedShow Answer

A person suffering from carpal tunnel syndrome has lost function of the

Correct AnswerverifiedShow Answer

In adults,the spinal cord is not the same length as the vertebral canal,and most of the lumbar part of the spinal cord is within

Correct AnswerverifiedShow Answer

Axons of the corticobulbar tracts

Correct AnswerverifiedShow Answer

Usually,awareness of the stimulus occurs before a reflex action has been initiated.

Correct AnswerverifiedShow Answer

If a patient experiences numbness in the boundaries of a dermatome,it is suggestive of damage to

Correct AnswerverifiedShow Answer

These nuclei are located in the lateral horns and innervate smooth muscle,cardiac muscle,and glands.

Correct AnswerverifiedShow Answer

A monosynaptic response is one that does not involve an interneuron.

Correct AnswerverifiedShow Answer

The second thoracic spinal nerve exits the spinal column through the

Correct AnswerverifiedShow Answer

The axons of primary sensory neurons make synaptic connections with

Correct AnswerverifiedShow Answer

The tapered,conical inferior end of the spinal cord is called the conus

Correct AnswerverifiedShow Answer

If a person suffers a thorax-crushing injury and is unable to breathe properly,you would suspect that this nerve was damaged.

Correct AnswerverifiedShow Answer

The simple knee-jerk reflex is an example of a(n) _____ reflex.

Correct AnswerverifiedShow Answer

Which of these spinal nerve counts is incorrect

Correct AnswerverifiedShow Answer

Nuclei within the gray matter of the spinal cord that receive information from sensory receptors such as pain or pressure receptors in the skin are _____ nuclei.

Correct AnswerverifiedShow Answer

The tectospinal tract is part of the medial pathway,which is an indirect motor pathway.

Correct AnswerverifiedShow Answer

Motor pathways are _ tracts that control _.

Correct Answer
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