Question 1

Which of the following best describes the organization of white and grey matter in a transverse cross-section of the spinal cord, as shown in the first image?

Accepted Answer

White matter forms the outer layer, while grey matter is found in the inner region.

Question 2

In the second image, which structure provides a protective cushion and contains adipose tissue between the vertebrae and the dura mater?

Accepted Answer

Epidural space

Question 3

Which meningeal layer, visible in the third image, is directly adhered to the surface of the brain and spinal cord and is highly vascularized?

Accepted Answer

Pia mater

Question 4

In the fourth image, which brain region is responsible for regulating muscle contraction, balance, and coordination?

Accepted Answer

Cerebellum

Question 5

The fifth image shows an inferior view of the brain. Which structure is responsible for connecting the two cerebral hemispheres?

Accepted Answer

Corpus callosum

Question 6

Which cranial nerve, visible in the sixth image, is responsible for transmitting visual information from the retina to the brain?

Accepted Answer

Optic nerve (II)

Question 7

A patient presents with loss of sensation in the face and difficulty chewing. Which cranial nerve is most likely affected?

Accepted Answer

Trigeminal nerve (V)

Question 8

Which of the following best describes the function of the thalamus, as seen in the sagittal section of the brain?

Accepted Answer

Serves as a relay station for sensory and motor information to the cerebral cortex

Question 9

Which space, located between the arachnoid mater and pia mater, contains cerebrospinal fluid (CSF) and is visible in the meningeal diagram?

Accepted Answer

Subarachnoid space

Question 10

If the anterior horn of the spinal cord (first image) is damaged, which function is most likely to be impaired?

Accepted Answer

Initiation of voluntary motor responses

Question 11

Which brainstem structure, visible in the sagittal section, is primarily responsible for regulating cardiovascular and respiratory functions?

Accepted Answer

Medulla oblongata

Question 12

Which lobe of the cerebrum, as seen in the sagittal section, is primarily responsible for processing visual information?

Accepted Answer

Occipital lobe

Question 13

Which of the following best describes the function of the hypothalamus, as seen in the sagittal section of the brain?

Accepted Answer

Controls the sleep-wake cycle, hunger, thirst, and body temperature

Question 14

Which cranial nerve is responsible for the sense of smell and terminates in the olfactory bulb?

Accepted Answer

Olfactory nerve (I)

Question 15

Which of the following is a function of the parasympathetic division of the autonomic nervous system?

Accepted Answer

Conserves energy and promotes digestion

Question 16

Which structure in the spinal cord cross-section contains the cell bodies of sensory neurons?

Accepted Answer

Posterior (dorsal) root ganglion

Question 17

A patient is unable to move their eyes upward or constrict their pupils. Which cranial nerve is most likely damaged?

Accepted Answer

Oculomotor nerve (III)

Question 18

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

Accepted Answer

The cerebrum has grey matter on the outside and white matter on the inside, while the spinal cord has the opposite arrangement.

Question 19

Which brain region, visible in the sagittal section, acts as a relay station for nearly all sensory information before it reaches the cerebral cortex?

Accepted Answer

Thalamus

Question 20

Which of the following best describes the function of cerebrospinal fluid (CSF) found in the subarachnoid space?

Accepted Answer

Provides shock absorption and maintains the CNS environment

Gross Anatomy of the Nervous System: Central and Peripheral Structures

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