Question 1

Which of the following best describes the function of the spinal cord in the central nervous system?

Accepted Answer

It carries sensory and motor information between the brain and most other parts of the body.

Question 2

A patient receives an epidural injection for pain relief during childbirth. Into which space is the anesthetic administered?

Accepted Answer

Epidural space

Question 3

Which structure anchors the spinal cord laterally to prevent excessive movement within the vertebral column?

Accepted Answer

Denticulate ligaments

Question 4

A patient presents with a loss of sensation and a painful rash along a specific dermatome. Which condition is most likely responsible?

Accepted Answer

Shingles (herpes zoster)

Question 5

Which of the following statements about spinal nerves is correct?

Accepted Answer

Spinal nerves are mixed nerves containing both sensory and motor fibers.

Question 6

The phrenic nerve, which controls the diaphragm, arises from which plexus?

Accepted Answer

Cervical plexus

Question 7

Which of the following best describes the organization of gray matter in the spinal cord?

Accepted Answer

It is deep and contains cell bodies of neurons, neuroglia, and unmyelinated axons.

Question 8

A patient with carpal tunnel syndrome is most likely to experience symptoms due to compression of which nerve?

Accepted Answer

Median nerve

Question 9

Which of the following is a correct pairing of a spinal cord region and its function?

Accepted Answer

Lumbosacral enlargement – supplies nerves to the pelvis and lower limb

Question 10

Which connective tissue layer surrounds individual axons within a peripheral nerve?

Accepted Answer

Endoneurium

Question 11

A patient is unable to extend their wrist and fingers after a humeral fracture. Which nerve is most likely damaged?

Accepted Answer

Radial nerve

Question 12

Which of the following best describes the function of the anterior horns of the spinal cord gray matter?

Accepted Answer

Contain somatic motor nuclei

Question 13

Which of the following neural circuit patterns allows a single sensory stimulus to produce multiple simultaneous responses, such as shifting weight, lifting a foot, and yelling in pain?

Accepted Answer

Parallel processing

Question 14

Which of the following statements about the cauda equina is correct?

Accepted Answer

It is a bundle of nerve roots extending below the conus medullaris.

Question 15

Which of the following best describes the difference between ascending and descending tracts in the white matter of the spinal cord?

Accepted Answer

Ascending tracts carry sensory information to the brain, while descending tracts carry motor commands to the periphery.

Question 16

A patient has lost sensation in the skin over the anterolateral thigh and medial leg. Which nerve is most likely affected?

Accepted Answer

Femoral nerve

Question 17

Which of the following is a function of the subarachnoid space?

Accepted Answer

It is filled with cerebrospinal fluid that carries dissolved gases, nutrients, and wastes.

Question 18

Which of the following best describes the organization of the brachial plexus?

Accepted Answer

It is formed by the anterior rami of C5–T1 and innervates the pectoral girdle and upper limbs.

Question 19

Which of the following is the correct order of connective tissue layers from outermost to innermost in a peripheral nerve?

Accepted Answer

Epineurium, perineurium, endoneurium

Question 20

A patient is unable to flex their arm at the elbow and has lost sensation on the lateral forearm. Which nerve is most likely damaged?

Accepted Answer

Musculocutaneous nerve

Study Guide: The Spinal Cord, Spinal Nerves, and Spinal Reflexes

스터디 가이드 - 연습 문제

학습 가이드 - 플래시카드