Question 1

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 B)
F) B) and D)

Question 2

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 B)
G) B) and D)

Question 3

Motor impulses destined for skeletal muscle will leave the spinal cord through the ________ before passing through a spinal nerve.

Accepted Answer

A)   posterior horn
B)   anterior root
C)   central canal
D)   posterior root ganglionE) B) and C)
F) A) and C)

Question 4

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) C) and E)
G) B) and D)

Question 5

The largest and longest nerve in the body is the ________ nerve.

Accepted Answer

A)   femoral
B)   radial
C)   sciatic
D)   obturator
E)   saphenousF) A) and C)
G) B) and D)

Question 6

The lumbar region of the spinal cord is closest to the lumbar vertebrae of the vertebral column.

Accepted Answer

A) True 
 B)False

Question 7

Motor pathways are ________ tracts that control ________.

Accepted Answer

A)   ascending; affectors
B)   ascending; effectors
C)   descending; affectors
D)   descending; effectorsE) A) and B)
F) C) and D)

Question 8

The fasciculus cuneatus is part of the

Accepted Answer

A)   anterolateral pathway.
B)   spinocerebellar pathway.
C)   posterior funiculus-medial lemniscal pathway.
D)   lateral spinothalamic tract.
E)   fasciculus gracilis.F) A) and B)
G) A) and D)

Question 9

Which of the rami is much smaller than the other?

Accepted Answer

A)   The anterior ramus
B)   The posterior ramusC) A) and B)
D) undefined

Question 10

Because most pathways decussate, each side of the brain processes information from the ________ side of the body.

Accepted Answer

A)   contralateral
B)   ipsilateralC) A) and B)
D) undefined

Question 11

The anterior rami of T1-T11 are called

Accepted Answer

A)   dorsal plexuses.
B)   anterior plexuses.
C)   intercostal nerves.
D)   brachial nerves.
E)   cervical nerves.F) A) and D)
G) B) and E)

Question 12

Sensory impulses traveling through the posterior root will reach the ________ upon entering the spinal cord.

Accepted Answer

A)   posterior horn
B)   anterior horn
C)   central commissure
D)   posterior root ganglionE) B) and C)
F) A) and B)

Question 13

Following an injury to his arm, a patient complains that he has lost the ability to flex his elbow and supinate his forearm. Which nerve do you suspect he has damaged?

Accepted Answer

A)   Median nerve
B)   Radial nerve
C)   Musculocutaneous nerve
D)   Ulnar nerve
E)   Axillary nerveF) A) and D)
G) A) and C)

Question 14

Stepping on a piece of glass would most likely invoke a ________ reflex.

Accepted Answer

A)   Golgi tendon
B)   withdrawal
C)   stretch
D)   pain
E)   motorF) C) and D)
G) B) and E)

Question 15

Following an injury to his arm, a patient complains that he has no sensations from the thumb, index finger, middle finger, and part of the ring finger. What nerve do you suspect to be damaged?

Accepted Answer

A)   Median nerve
B)   Radial nerve
C)   Musculocutaneous nerve
D)   Ulnar nerve
E)   Axillary nerveF) B) and C)
G) C) and D)

Question 16

The third cervical spinal nerve exits the vertebral column through the

Accepted Answer

A)   intervertebral foramen between C2 and C3 vertebrae.
B)   intervertebral foramen between C3 and C4 vertebrae.
C)   transverse foramen of C3 vertebra.
D)   vertebral canal of vertebrae C2, C3, and C4.E) A) and C)
F) None of the above

Question 17

Each side of the spinal cord gives rise to ________ cervical nerves.

Accepted Answer

A)   two
B)   six
C)   seven
D)   eight
E)   twelveF) A) and B)
G) C) and D)

Question 18

________ pathways have peripheral primary neurons and central secondary and tertiary neurons.

Accepted Answer

A)   Motor
B)   SensoryC) A) and B)
D) undefined

Question 19

What is the thin strand of pia mater that helps to anchor the spinal cord to the coccyx?

Accepted Answer

A)   Conus medullaris
B)   Cervical enlargement
C)   Terminus coccyx
D)   Filum terminale
E)   Coccygeal tendonF) None of the above
G) C) and E)

Question 20

The lateral corticospinal tracts include a ________ of the upper motor neuron axons that pass through the medulla, and they govern control of ________.

Accepted Answer

A)   majority; axial muscles
B)   majority; muscles used for finely controlled movements
C)   minority; axial muscles
D)   minority; muscles used for finely controlled movementsE) A) and C)
F) None of the above

Exam 14: Nervous System: Spinal Cord and Spinal Nerves

________ pathways have peripheral primary neurons and central secondary and tertiary neurons.

Correct AnswerverifiedShow Answer

The lateral corticospinal tracts include a ________ of the upper motor neuron axons that pass through the medulla, and they govern control of ________.

Correct AnswerverifiedShow Answer

Which of the rami is much smaller than the other?

Correct AnswerverifiedShow Answer

Stepping on a piece of glass would most likely invoke a ________ reflex.

Correct AnswerverifiedShow Answer

Each side of the spinal cord gives rise to ________ cervical nerves.

Correct AnswerverifiedShow Answer

Motor pathways are ________ tracts that control ________.

Correct AnswerverifiedShow Answer

The fasciculus cuneatus is part of the

Correct AnswerverifiedShow Answer

Following an injury to his arm, a patient complains that he has lost the ability to flex his elbow and supinate his forearm. Which nerve do you suspect he has damaged?

Correct AnswerverifiedShow Answer

The anterior rami of T1-T11 are called

Correct AnswerverifiedShow Answer

The third cervical spinal nerve exits the vertebral column through the

Correct AnswerverifiedShow Answer

The anterior ramus of a typical spinal nerve innervates the

Correct AnswerverifiedShow Answer

Motor impulses destined for skeletal muscle will leave the spinal cord through the ________ before passing through a spinal nerve.

Correct AnswerverifiedShow Answer

The largest and longest nerve in the body is the ________ nerve.

Correct AnswerverifiedShow Answer

Following an injury to his arm, a patient complains that he has no sensations from the thumb, index finger, middle finger, and part of the ring finger. What nerve do you suspect to be damaged?

Correct AnswerverifiedShow Answer

Sensory impulses traveling through the posterior root will reach the ________ upon entering the spinal cord.

Correct AnswerverifiedShow Answer

Because most pathways decussate, each side of the brain processes information from the ________ side of the body.

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 lumbar region of the spinal cord is closest to the lumbar vertebrae of the vertebral column.

Correct AnswerverifiedShow Answer

What is the thin strand of pia mater that helps to anchor the spinal cord to the coccyx?

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

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The lateral corticospinal tracts include a of the upper motor neuron axons that pass through the medulla, and they govern control of .

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Motor pathways are tracts that control .

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