Question 1

Which of the following correctly lists the order of the spinal meninges from superficial to deep?

Accepted Answer

Dura mater, arachnoid mater, pia mater

Question 2

A patient receives an epidural anesthesia during childbirth. Into which space is the anesthetic injected?

Accepted Answer

Epidural space

Question 3

Which structure anchors the spinal cord laterally to the dura mater, providing stability within the vertebral canal?

Accepted Answer

Denticulate ligaments

Question 4

A lumbar puncture is performed to collect cerebrospinal fluid. Which space is targeted by the needle?

Accepted Answer

Subarachnoid space

Question 5

Which region of the spinal cord contains the cell bodies of somatic motor neurons?

Accepted Answer

Anterior gray horn

Question 6

Which of the following best describes the cauda equina?

Accepted Answer

A bundle of nerve roots extending below the conus medullaris

Question 7

A patient presents with loss of sensation in the lateral aspect of the forearm. Which spinal nerve plexus is most likely involved?

Accepted Answer

Brachial plexus

Question 8

Which of the following is TRUE regarding the organization of white matter in the spinal cord?

Accepted Answer

It contains ascending and descending tracts

Question 9

Which nerve structure is the outermost connective tissue covering of a peripheral nerve?

Accepted Answer

Epineurium

Question 10

A patient has a spinal cord injury at the level of T12. Which of the following deficits is most likely?

Accepted Answer

Paraplegia

Question 11

Which of the following best describes a dermatome?

Accepted Answer

A region of skin supplied by a single spinal nerve

Question 12

Which of the following is a characteristic of a monosynaptic reflex arc?

Accepted Answer

It has only one synapse between sensory and motor neuron

Question 13

Which of the following is TRUE about the withdrawal reflex?

Accepted Answer

It removes a body part from a painful stimulus

Question 14

Which of the following best describes the function of the dorsal root ganglion?

Accepted Answer

It contains cell bodies of sensory neurons

Question 15

Which of the following spinal cord disorders is caused by a virus that destroys motor neurons, leading to paralysis?

Accepted Answer

Polio

Question 16

Which of the following is the correct formula for calculating the number of spinal nerves in the human body?

Accepted Answer

$$C + T + L + S + Co$$

Question 17

A patient with shingles presents with a painful rash along a specific band of skin. This pattern is best explained by which anatomical concept?

Accepted Answer

Dermatome

Question 18

Which of the following statements about the brachial plexus is correct?

Accepted Answer

It innervates the upper limb

Question 19

Which of the following best describes the function of the anterior white commissure in the spinal cord?

Accepted Answer

It allows communication between the left and right sides of the white matter

Question 20

A patient is unable to contract the quadriceps muscle in response to a tap on the patellar tendon. Which reflex is most likely impaired?

Accepted Answer

Stretch reflex

Spinal Cord and Spinal Nerves: Structure, Function, and Clinical Relevance

Study Guide - Practice Questions