$$\text{Frequency (Hz)} = \frac{\text{Number of peaks}}{\text{Time (seconds)}}$$

Question 1

Which area of the cerebral cortex is primarily responsible for speech production, and what is the expected deficit if this area is damaged?

Accepted Answer

Broca's area; inability to produce speech

Question 2

A patient presents with fluent but nonsensical speech and cannot comprehend spoken or written language. Which brain region is most likely affected?

Accepted Answer

Wernicke's area

Question 3

Which of the following best describes the process of memory consolidation?

Accepted Answer

Fitting new facts into categories already stored in the cerebral cortex

Question 4

Which factor is LEAST likely to enhance the transfer of information from short-term memory (STM) to long-term memory (LTM)?

Accepted Answer

Passive reading without engagement

Question 5

A person with anterograde amnesia is most likely to:

Accepted Answer

Be unable to form new memories but retain old ones

Question 6

Which EEG brain wave pattern is most commonly associated with deep sleep in adults?

Accepted Answer

Delta waves

Question 7

During REM sleep, which of the following physiological changes occurs?

Accepted Answer

Temporary paralysis except for rapid eye movements

Question 8

Which structure is responsible for regulating the timing of the sleep cycle and acts as a biological clock?

Accepted Answer

Suprachiasmatic nucleus

Question 9

Which meningeal layer is the strongest and forms partitions that limit excessive movement of the brain?

Accepted Answer

Dura mater

Question 10

The subarachnoid space is located between which two meningeal layers and contains cerebrospinal fluid (CSF)?

Accepted Answer

Arachnoid mater and pia mater

Question 11

Which of the following is a function of cerebrospinal fluid (CSF)?

Accepted Answer

Reduces the weight of the brain by 97%

Question 12

Hydrocephalus in adults can lead to brain damage primarily because:

Accepted Answer

The skull is rigid and cannot expand to relieve pressure

Question 13

Which of the following substances can freely cross the blood-brain barrier by simple diffusion?

Accepted Answer

Lipid-soluble substances

Question 14

A patient with Parkinson’s disease is most likely to experience which of the following symptoms?

Accepted Answer

Resting tremors due to overactive basal nuclei

Question 15

Which spinal cord tract transmits pain and temperature sensations to the brain?

Accepted Answer

Spinothalamic tract

Question 16

Damage to the ventral horn cells of the spinal cord would most likely result in:

Accepted Answer

Flaccid paralysis

Question 17

Which developmental defect results from the failure of the neural fold to fuse, leading to the absence of the cerebrum and parts of the brain stem?

Accepted Answer

Anencephaly

Question 18

Which pathway is responsible for transmitting information about muscle or tendon stretch to the cerebellum for coordination of muscle activity?

Accepted Answer

Spinocerebellar pathway

Question 19

Which of the following best describes the organization of white matter in the spinal cord?

Accepted Answer

It is divided into dorsal, lateral, and ventral columns (funiculi)

Question 20

Which equation correctly represents the relationship between frequency (in Hertz) and the number of peaks per second in EEG brain waves?

Accepted Answer

$$	ext{Frequency (Hz)} = \frac{	ext{Number of peaks}}{	ext{Time (seconds)}}$$

Higher Mental Functions, Brain Protection, and Spinal Cord: Structure and Function

Study Guide - Practice Questions