Question 1

Which region of the adult human brain is primarily responsible for conscious thought, reasoning, and memory?

Accepted Answer

Cerebrum

Question 2

The adult human brain contains almost 97% of the body's neural tissue. What is the approximate weight of the adult human brain?

Accepted Answer

3 lb (1.4 kg)

Question 3

Which structure connects the two cerebral hemispheres and allows communication between them?

Accepted Answer

Corpus callosum

Question 4

Damage to which part of the brain is most likely to result in loss of coordination and balance?

Accepted Answer

Cerebellum

Question 5

Which of the following is NOT a function of the hypothalamus?

Accepted Answer

Coordination of voluntary muscle movement

Question 6

A patient presents with difficulty in speech comprehension. Which area of the brain is most likely affected?

Accepted Answer

Wernicke's area

Question 7

Which brain region acts as a major relay station for ascending sensory information to the cerebral cortex?

Accepted Answer

Thalamus

Question 8

If the blood-brain barrier is compromised, which of the following is most likely to occur?

Accepted Answer

Unrestricted passage of proteins and pathogens into brain tissue

Question 9

Which equation best represents the relationship for cerebrospinal fluid (CSF) pressure in hydrocephalus?

Accepted Answer

$$CSF_{pressure} = CSF_{formation} - CSF_{reabsorption}$$

Question 10

Which of the following is a direct effect of damage to the substantia nigra?

Accepted Answer

Decreased dopamine secretion

Question 11

A patient with Parkinson's disease is likely to have which neurotransmitter imbalance?

Accepted Answer

Low dopamine, high acetylcholine

Question 12

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

Accepted Answer

Occipital lobe

Question 13

Which of the following structures is NOT part of the diencephalon?

Accepted Answer

Cerebellum

Question 14

Which brain region is most involved in regulating vital autonomic functions such as heart rate and respiration?

Accepted Answer

Medulla oblongata

Question 15

Which of the following best describes the function of the limbic system?

Accepted Answer

Creation of emotions, motivation, and memory

Question 16

Which of the following statements about cerebrospinal fluid (CSF) is correct?

Accepted Answer

CSF provides mechanical and chemical protection to the brain

Question 17

Which equation correctly represents the rate of CSF turnover in the adult brain?

Accepted Answer

$$CSF_{turnover} = \frac{CSF_{production}}{CSF_{volume}}$$

Question 18

Which of the following is a function of the basal nuclei?

Accepted Answer

Coordination of learned movement patterns

Question 19

Which of the following best explains why glucose can cross the blood-brain barrier?

Accepted Answer

Glucose crosses by active transport mechanisms

Question 20

A patient with a stroke affecting the right cerebral hemisphere is most likely to experience which of the following deficits?

Accepted Answer

Difficulty with visuospatial relationships and facial recognition

Structure and Function of the Adult Human Brain

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