Question 1

Which of the following best describes the arrangement of gray and white matter in the spinal cord compared to the brain?

Accepted Answer

Gray matter is deep to white matter in the spinal cord, but superficial in the brain.

Question 2

A patient suffers a lesion on the right side of their spinal cord at the lumbar level. Which of the following would most likely be lost in the right foot?

Accepted Answer

Fine touch and proprioception

Question 3

Which tract is responsible for carrying subconscious proprioceptive information to the cerebellum without crossing over?

Accepted Answer

Posterior spinocerebellar tract

Question 4

The fasciculus cuneatus and fasciculus gracilis are responsible for transmitting which type of sensory information?

Accepted Answer

Fine touch, pressure, and conscious proprioception

Question 5

Which of the following best describes the pathway of the lateral corticospinal tract?

Accepted Answer

Originates in the primary motor cortex, crosses over in the medulla, and descends contralaterally.

Question 6

Damage to the left anterior horn of the spinal cord at the cervical level would most likely result in which of the following?

Accepted Answer

Loss of voluntary motor control in the left upper limb

Question 7

Which tract is primarily responsible for transmitting pain and temperature sensations to the brain, and where does it cross over?

Accepted Answer

Lateral spinothalamic tract; crosses over immediately upon entering the spinal cord

Question 8

Which of the following tracts is most involved in voluntary movement of skeletal muscles?

Accepted Answer

Lateral corticospinal tract

Question 9

A patient cannot track moving objects with their eyes, but other motor functions are intact. Which tract is most likely damaged?

Accepted Answer

Tectospinal tract

Question 10

Which of the following best describes the function of the vestibulospinal tract?

Accepted Answer

Maintains balance by influencing ipsilateral muscles

Question 11

Which horn of the spinal cord contains cell bodies for the autonomic nervous system and is most prominent in the thoracic and upper lumbar regions?

Accepted Answer

Lateral horn

Question 12

Which of the following best explains why a person with right-sided spinal cord damage at the thoracic level can still feel pain and temperature in the right foot?

Accepted Answer

Pain and temperature pathways cross over immediately upon entering the spinal cord.

Question 13

Which tract is responsible for transmitting crude touch and pressure, and where does it cross over?

Accepted Answer

Anterior spinothalamic tract; crosses over before ascending

Question 14

Which of the following best describes the function of the rubrospinal pathway?

Accepted Answer

Maintains muscle tone on the contralateral side

Question 15

Which of the following is TRUE regarding the dorsal root ganglion?

Accepted Answer

It contains cell bodies of sensory neurons entering the spinal cord.

Question 16

Which of the following tracts would be most affected by a lesion in the medial lemniscus after the decussation in the medulla?

Accepted Answer

Fasciculus gracilis and fasciculus cuneatus

Question 17

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

Accepted Answer

It is organized into anterior, lateral, and posterior funiculi (columns).

Question 18

Which tract is most involved in transmitting information about the position of joints and limbs that you are consciously aware of?

Accepted Answer

Fasciculus gracilis and fasciculus cuneatus

Question 19

Which of the following best describes the function of the reticulospinal tracts?

Accepted Answer

They help regulate muscle tone and control visceral and unskilled movements.

Question 20

A patient presents with loss of crude touch and pressure sensation on the left side of the body below a spinal cord lesion. Which tract is most likely damaged, and on which side?

Accepted Answer

Right anterior spinothalamic tract

Spinal Cord Structure and Pathways: Anatomy & Physiology Study Guide

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