Question 1

During embryonic development, which structure forms first from the thickening of the neuroectoderm?

Accepted Answer

Neural plate

Question 2

Which of the following correctly matches a primary brain vesicle with its adult brain derivative?

Accepted Answer

Mesencephalon – midbrain

Question 3

A patient has difficulty with voluntary motor control, especially fine movements of the hand. Damage to which area of the cerebral cortex is most likely responsible?

Accepted Answer

Primary motor cortex

Question 4

Which of the following best describes the function of the thalamus?

Accepted Answer

Relay station for sensory impulses to the cerebral cortex

Question 5

The brain floats in cerebrospinal fluid (CSF). Which of the following best explains the function of this buoyancy?

Accepted Answer

It reduces the effective weight of the brain, preventing it from crushing under its own mass.

Question 6

A stroke patient is unable to speak fluently but can understand language. Which area of the brain is most likely damaged?

Accepted Answer

Broca's area

Question 7

Which of the following statements about the cerebral hemispheres is correct?

Accepted Answer

The left hemisphere typically dominates language abilities in most people.

Question 8

Which structure connects the right and left cerebral hemispheres, allowing communication between them?

Accepted Answer

Corpus callosum

Question 9

A lesion in the postcentral gyrus would most likely result in which of the following deficits?

Accepted Answer

Loss of somatic sensory perception

Question 10

Which of the following best describes the function of the hypothalamus?

Accepted Answer

Regulation of autonomic nervous system and endocrine functions

Question 11

A patient is unable to recognize objects by touch, even though their sense of touch is intact. Which cortical area is most likely damaged?

Accepted Answer

Somatosensory association cortex

Question 12

Which of the following is a correct sequence of brain development from the neural tube?

Accepted Answer

Neural plate → neural groove → neural tube

Question 13

Which of the following best explains why damage to the brainstem is often life-threatening?

Accepted Answer

It contains centers that control vital functions such as heart rate and respiration.

Question 14

Which of the following structures is responsible for producing cerebrospinal fluid (CSF)?

Accepted Answer

Choroid plexus

Question 15

A patient with a tumor in the pineal gland may have difficulty regulating which of the following?

Accepted Answer

Sleep-wake cycles

Question 16

Which of the following equations correctly represents the relationship between the volume of cerebrospinal fluid ($$V_{CSF}$$), the rate of production ($$R_p$$), and the rate of absorption ($$R_a) at $$steady state?

Accepted Answer

$$R_p = R_a$$

Question 17

Which of the following best describes the function of the basal nuclei?

Accepted Answer

Initiation and control of voluntary motor movements

Question 18

A patient is unable to verbally understand written or spoken language, but can speak fluently (though nonsensically). Which area is most likely damaged?

Accepted Answer

Wernicke's area

Question 19

Which of the following is the correct order of the meninges from superficial to deep?

Accepted Answer

Dura mater → arachnoid mater → pia mater

Question 20

Which of the following best explains why the cerebral cortex is highly folded?

Accepted Answer

To increase surface area for more neurons and synaptic connections

Development and Organization of the Central Nervous System

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