Question 1

Which of the following best describes the function of the dorsal root of the spinal nerve?

Accepted Answer

It carries sensory information into the spinal cord.

Question 2

A patient is unable to move their right leg and has lost sensation below the waist after a car accident. Which region of the spinal cord is most likely injured?

Accepted Answer

Lumbar region

Question 3

Which meningeal layer is directly in contact with the spinal cord?

Accepted Answer

Pia mater

Question 4

During a lumbar puncture, cerebrospinal fluid (CSF) is withdrawn from which space?

Accepted Answer

Subarachnoid space

Question 5

Which of the following cranial nerves is responsible for hearing and balance?

Accepted Answer

Vestibulocochlear nerve (VIII)

Question 6

A reflex arc typically involves which sequence of structures?

Accepted Answer

Receptor → Sensory neuron → Integration center → Motor neuron → Effector

Question 7

Which spinal cord structure contains the cell bodies of sensory neurons?

Accepted Answer

Dorsal root ganglion

Question 8

If a patient has numbness and tingling in their hands and fingers, which region of the spinal cord is most likely affected?

Accepted Answer

Cervical region

Question 9

Which of the following best describes the function of the ventral horn of the spinal cord?

Accepted Answer

It contains cell bodies of motor neurons.

Question 10

Which cranial nerve is responsible for eye movement and is purely motor?

Accepted Answer

Oculomotor nerve (III)

Question 11

A patient presents with burning and tingling along a single dermatome on the right thigh. Which type of peripheral nerve fiber is most likely transmitting this information?

Accepted Answer

Sensory fiber

Question 12

Which of the following is the correct order of the three layers of spinal meninges from outermost to innermost?

Accepted Answer

Dura mater → Arachnoid mater → Pia mater

Question 13

Which region of the spinal cord contains the greatest number of nerve fibers due to innervation of the upper limbs?

Accepted Answer

Cervical enlargement

Question 14

Which of the following best explains why an epidural injection does NOT enter the cerebrospinal fluid (CSF)?

Accepted Answer

The epidural space is outside the dura mater, while CSF is in the subarachnoid space.

Question 15

Which lobe of the brain would sensory information from the spinal cord enter after ascending through the brainstem?

Accepted Answer

Parietal lobe

Question 16

Which cranial nerve is responsible for facial expressions and taste on the anterior two-thirds of the tongue?

Accepted Answer

Facial nerve (VII)

Question 17

Which of the following best describes the cauda equina?

Accepted Answer

A bundle of spinal nerve roots at the inferior end of the spinal cord

Question 18

Which of the following is TRUE regarding the pathway of a spinal reflex?

Accepted Answer

The sensory neuron transmits information from the receptor to the CNS.

Question 19

Which cranial nerve is responsible for swallowing and speech and is classified as a motor nerve?

Accepted Answer

Hypoglossal nerve (XII)

Question 20

A patient does not respond to a patellar tendon tap. Which of the following could explain this finding?

Accepted Answer

Damage to the sensory neuron in the lumbar region

Nurs 1002-Lab #9

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