Question 1

Which of the following best describes the primary function of the hypothalamus within the central nervous system?

Accepted Answer

Main visceral control center, regulating homeostasis such as body temperature, hunger, and emotional responses

Question 2

A patient presents with difficulty in maintaining balance and coordinating movements after a head injury. Which brain structure is most likely affected?

Accepted Answer

Cerebellum

Question 3

Which division of the nervous system is responsible for the 'fight or flight' response?

Accepted Answer

Sympathetic division

Question 4

Damage to Broca’s area in the frontal lobe would most likely result in which of the following deficits?

Accepted Answer

Difficulty in speech production and language preparation

Question 5

Which of the following structures acts as a relay station for sensory information traveling to the cerebral cortex?

Accepted Answer

Thalamus

Question 6

A person is startled by a loud noise and immediately experiences an increased heart rate and rapid breathing. Which division of the autonomic nervous system is primarily responsible for these changes?

Accepted Answer

Sympathetic division

Question 7

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

Accepted Answer

Occipital lobe

Question 8

The limbic system is most closely associated with which of the following functions?

Accepted Answer

Emotion, memory formation, and motivation

Question 9

Which of the following best explains the significance of the Phineas Gage case in neuroscience?

Accepted Answer

It provided evidence that brain function is localized to specific regions.

Question 10

Which of the following is a correct sequence of the major regions of the brain from anterior to posterior?

Accepted Answer

Forebrain, midbrain, hindbrain

Question 11

Which structure is responsible for filtering out weak or irrelevant stimuli to help maintain focus and consciousness?

Accepted Answer

Reticular Activating System (RAS)

Question 12

A patient with Parkinson’s disease is most likely to have dysfunction in which brain structure?

Accepted Answer

Basal nuclei (ganglia)

Question 13

Which of the following best describes the function of cerebrospinal fluid (CSF)?

Accepted Answer

Provides buoyancy, protection, and nourishment to the brain and spinal cord

Question 14

Which of the following equations best represents the relationship between cerebral blood flow ($$CBF$$), cerebral perfusion pressure ($$CPP$$), and cerebrovascular resistance ($$CVR$$)?

Accepted Answer

$$CBF = CPP \div CVR$$

Question 15

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

Accepted Answer

Transmit motor signals to muscles

Question 16

During which stage of sleep are rapid eye movements and vivid dreams most likely to occur?

Accepted Answer

REM (paradoxical sleep)

Question 17

Which of the following best describes the role of the thalamus in sensory processing?

Accepted Answer

It acts as a relay station, directing sensory information to appropriate areas of the cerebral cortex.

Question 18

Which of the following is a correct description of the blood-brain barrier?

Accepted Answer

It restricts passage of most water-soluble substances while allowing small lipid-soluble molecules to diffuse.

Question 19

Which of the following best explains why the brain depends on a constant supply of oxygen and glucose?

Accepted Answer

Neurons in the brain cannot produce ATP without oxygen and glucose.

Question 20

A patient is unable to consciously control precise, voluntary movements of their right hand. Which area of the brain is most likely damaged?

Accepted Answer

Primary motor cortex in the left frontal lobe

Central Nervous System: Organization and Structure (BIO 221, Chapter 1)

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