Question 1

Which of the following best describes cephalization in the context of human evolution?

Accepted Answer

The concentration of neural and sensory organs toward the body's anterior end, resulting in a complex neural system and intelligence.

Question 2

A patient suffers a stroke that damages the brain's motor area. Which of the following is the most likely result?

Accepted Answer

Impaired movement or motor function.

Question 3

Which statement about the organization of gray and white matter in the CNS is correct?

Accepted Answer

In the spinal cord, white matter surrounds a central core of gray matter.

Question 4

During embryonic development, which primary brain vesicle gives rise to both the cerebellum and the pons?

Accepted Answer

Rhombencephalon

Question 5

Which of the following best explains why the adult human brain has a wrinkled appearance?

Accepted Answer

The brain grows faster than the fetal skull, causing it to fold and form convolutions that increase surface area.

Question 6

Which structure separates the left and right cerebral hemispheres?

Accepted Answer

Longitudinal fissure

Question 7

A researcher is studying the flow of cerebrospinal fluid (CSF) in the brain. Through which structure does CSF flow from the third ventricle to the fourth ventricle?

Accepted Answer

Cerebral aqueduct

Question 8

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

Accepted Answer

Neural tube → Prosencephalon → Diencephalon → Thalamus

Question 9

Which of the following best describes the function of the cerebral cortex?

Accepted Answer

It provides cognitive functions such as thinking, memory, and decision-making.

Question 10

Which of the following statements about brain ventricles is correct?

Accepted Answer

The lateral ventricles are separated by the septum pellucidum and connect to the third ventricle via the interventricular foramen.

Question 11

A lesion in the basal nuclei would most likely result in which of the following symptoms?

Accepted Answer

Impaired motor control and cognition

Question 12

Which of the following best describes the pattern of gray and white matter in the cerebrum and cerebellum?

Accepted Answer

Gray matter surrounds a central core of white matter, with an additional outer layer of gray matter called the cortex.

Question 13

Which of the following is a real-life consequence of damage to the brain's sensory area?

Accepted Answer

No response to sensory stimuli

Question 14

Which of the following is true regarding the relationship between brain size and body mass?

Accepted Answer

Body mass generally determines brain size.

Question 15

Which of the following best explains why the brain develops convolutions during fetal development?

Accepted Answer

To increase the number of neurons that can fit in a limited space by increasing surface area.

Question 16

Which of the following is NOT a function of the basal nuclei?

Accepted Answer

Production of cerebrospinal fluid

Question 17

A patient presents with a blockage in the interventricular foramen. Which of the following ventricles would most likely become enlarged due to cerebrospinal fluid accumulation?

Accepted Answer

Lateral ventricles

Question 18

Which of the following best describes the role of white matter in the brain?

Accepted Answer

It consists of myelinated fiber tracts that allow communication between different brain regions.

Question 19

Which of the following is a correct pairing of a brain region and its adult derivative?

Accepted Answer

Telencephalon – Cerebral hemispheres

Question 20

Which of the following best describes the function of the ependymal cells lining the brain ventricles?

Accepted Answer

They line the ventricles and help circulate cerebrospinal fluid.

CH 12 I

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