Question 1

Lower motor neurons are always excitatory.

Accepted Answer

A) True 
 B)False

Question 2

Where the sciatic nerve splits, it branches directly to the

Accepted Answer

A)   deep and superficial fibular nerves.
B)   tibial and common fibular nerves.
C)   femoral and obturator nerves.
D)   deep femoral and tibial nerves.
E)   popliteal and sural nerves.

Question 3

Anatomy of the spinal cord & spinal nerves. 
-This figure shows a cross section of the spinal cord. What structure does number 3 indicate?

Accepted Answer

A)   Posterior funiculus
B)   White commissure
C)   Anterior funiculus
D)   Lateral funiculus
E)   Anterior median fissure

Question 4

Which of the following accurately compares sections of spinal white matter?

Accepted Answer

A)   A fasciculus is smaller than a funiculus.
B)   A fasciculus is larger than a funiculus.
C)   A fasciculus is smaller than a tract.
D)   A fasciculus is larger than a tract.

Question 5

Anatomy of the spinal cord & spinal nerves. 
-This figure shows an anterior view of the spinal cord and meninges. What structure does number 3 indicate?

Accepted Answer

A)   Arachnoid
B)   Pia mater
C)   Dura mater
D)   Gray matter
E)   White matter

Question 6

The white matter of the spinal cord is surrounded by its grey matter.

Accepted Answer

A) True 
 B)False

Question 7

Clonus often accompanies a ________ reflex after damage has occurred to the brain.

Accepted Answer

A)   cremaster
B)   pupillary
C)   hypoactive
D)   hyperactive

Question 8

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.

Question 9

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

Accepted Answer

A) True 
 B)False

Question 10

The lateral funiculus contains both ascending and descending tracts.

Accepted Answer

A) True 
 B)False

Question 11

Which of the following lists the components of the brachial plexus in correct order starting with the most medial?

Accepted Answer

A)   Cords, divisions, nerves, rami
B)   Rami, divisions, cords, trunks
C)   Trunks, divisions, rami, cords
D)   Ganglia, rami, nerves, terminals
E)   Rami, trunks, divisions, cords

Question 12

In a common reflex arc, after a sensory nerve signal is processed by interneurons in the integration center, where does the signal go next?

Accepted Answer

A)   Motor neuron
B)   Sensory neuron
C)   Sensory receptor
D)   Effector

Question 13

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.

Question 14

The direct motor pathway originates in the

Accepted Answer

A)   motor cortex of the cerebral cortex.
B)   superior colliculus of the midbrain.
C)   vestibular nuclei of the brainstem.
D)   reticular formation of the brainstem.

Question 15

Information about temperature, proprioception, and pressure from skin, joints, and muscles is conveyed by

Accepted Answer

A)   somatomotor pathways.
B)   visceromotor pathways.
C)   somatosensory pathways.
D)   viscerosensory pathways.

Question 16

The spinal nerves that give rise to the sacral plexus are

Accepted Answer

A)   L4-S4.
B)   T11-Co1.
C)   L2-S1.
D)   S4-C2.

Question 17

Which space associated with the spinal cord meninges contains cerebrospinal fluid?

Accepted Answer

A)   Epidural space
B)   Subdural space
C)   Subarachnoid space
D)   Epiarachnoid space
E)   Subpial space

Question 18

The spinal dura mater contains an outer periosteal layer and an inner meningeal layer.

Accepted Answer

A) True 
 B)False

Question 19

An individual tract within the spinal cord contains either sensory nerve signals or motor nerve signals only.

Accepted Answer

A) True 
 B)False

Question 20

Anatomy of the spinal cord & spinal nerves. 
-This figure shows neuron pathways and nuclei locations. What type of nuclei does number 2 indicate?

Accepted Answer

A)   Somatic motor nuclei
B)   Autonomic motor nuclei
C)   Visceral sensory nuclei
D)   Somatic sensory nuclei
E)   None of the choices is correct.

Exam 14: Nervous System: Spinal Cord and Spinal Nerves

Where the sciatic nerve splits, it branches directly to the

Correct AnswerverifiedShow Answer

Clonus often accompanies a ________ reflex after damage has occurred to the brain.

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Which space associated with the spinal cord meninges contains cerebrospinal fluid?

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Which of the following accurately compares sections of spinal white matter?

Correct AnswerverifiedShow Answer

The lateral funiculus contains both ascending and descending tracts.

Correct AnswerverifiedShow Answer

Anatomy of the spinal cord & spinal nerves. -This figure shows neuron pathways and nuclei locations. What type of nuclei does number 2 indicate?

Correct AnswerverifiedShow Answer

Anatomy of the spinal cord & spinal nerves. -This figure shows an anterior view of the spinal cord and meninges. What structure does number 3 indicate?

Correct AnswerverifiedShow Answer

Which of the following lists the components of the brachial plexus in correct order starting with the most medial?

Correct AnswerverifiedShow Answer

In a common reflex arc, after a sensory nerve signal is processed by interneurons in the integration center, where does the signal go next?

Correct AnswerverifiedShow Answer

Anatomy of the spinal cord & spinal nerves. -This figure shows a cross section of the spinal cord. What structure does number 3 indicate?

Correct AnswerverifiedShow Answer

Information about temperature, proprioception, and pressure from skin, joints, and muscles is conveyed by

Correct AnswerverifiedShow Answer

An individual tract within the spinal cord contains either sensory nerve signals or motor nerve signals only.

Correct AnswerverifiedShow Answer

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

Correct AnswerverifiedShow Answer

Lower motor neurons are always excitatory.

Correct AnswerverifiedShow Answer

The spinal nerves that give rise to the sacral plexus are

Correct AnswerverifiedShow Answer

The spinal dura mater contains an outer periosteal layer and an inner meningeal layer.

Correct AnswerverifiedShow Answer

The white matter of the spinal cord is surrounded by its grey matter.

Correct AnswerverifiedShow Answer

The direct motor pathway originates in the

Correct AnswerverifiedShow Answer

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