$$\text{CSF Production Rate} = \text{CSF Absorption Rate}$$

Question 1

Which of the following best describes the difference between gray matter and white matter in the central nervous system?

Accepted Answer

Gray matter contains neuron cell bodies and unmyelinated fibers, while white matter is composed mainly of myelinated axons.

Question 2

A patient presents with a blockage in the cerebral aqueduct. Which ventricle is most likely to be affected by increased pressure?

Accepted Answer

Third ventricle

Question 3

Which groove separates the frontal lobe from the parietal lobe in the cerebrum?

Accepted Answer

Central sulcus

Question 4

A stroke affecting the precentral gyrus would most likely impair which function?

Accepted Answer

Motor control of voluntary movements

Question 5

Which area of the cerebrum is primarily responsible for integrating information from different sensory modalities?

Accepted Answer

Association areas

Question 6

If a person is left hemisphere dominant, which function is most likely to be more developed?

Accepted Answer

Language and analytical skills

Question 7

The basal nuclei are primarily involved in which of the following?

Accepted Answer

Coordinating voluntary motor activity and inhibiting unnecessary movements

Question 8

Which part of the diencephalon acts as a relay station for sensory information?

Accepted Answer

Thalamus

Question 9

Damage to the medulla oblongata would most likely result in which of the following symptoms?

Accepted Answer

Impaired regulation of heart rate and breathing

Question 10

Which structure is responsible for maintaining balance and coordinating fine motor movements?

Accepted Answer

Cerebellum

Question 11

A patient with emotional disturbances and memory deficits may have damage to which brain system?

Accepted Answer

Limbic system

Question 12

Which of the following best describes the function of the reticular formation?

Accepted Answer

Maintains alertness and filters incoming sensory information

Question 13

Which of the following is NOT a protective mechanism for the brain?

Accepted Answer

Basal nuclei

Question 14

A patient suffers a traumatic injury that damages the corpus callosum. Which function is most likely to be impaired?

Accepted Answer

Communication between the two cerebral hemispheres

Question 15

Which equation best represents the relationship between cerebrospinal fluid (CSF) production and absorption in a healthy adult?

Accepted Answer

$$	ext{CSF Production Rate} = 	ext{CSF Absorption Rate}$$

Question 16

A patient with a tumor in the hypothalamus may experience which of the following symptoms?

Accepted Answer

Disrupted homeostasis, such as abnormal body temperature and thirst

Question 17

Which of the following best describes the flow of cerebrospinal fluid (CSF) through the ventricles?

Accepted Answer

Lateral ventricles → Third ventricle → Fourth ventricle → Central canal

Question 18

Which lobe of the cerebrum is primarily responsible for processing visual information?

Accepted Answer

Occipital lobe

Question 19

A patient is unable to form new memories after a head injury. Which structure is most likely damaged?

Accepted Answer

Hippocampus

Question 20

Which of the following best explains why the blood-brain barrier is important for central nervous system function?

Accepted Answer

It prevents harmful substances from entering the brain while allowing essential nutrients.

Chapter 12 Study Guide – Brain and CNS Protection (Anatomy & Physiology)

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