Q: Which equation best represents the relationship between the mass of the brain ($$m$$), the percentage of total blood flow it receives ($$p$$), and the total blood flow ($$B) $$during rest?

$$B_{brain} = p \times B_{total}$$

Question 1

Which of the following best describes the primary function of the central nervous system (CNS)?

Accepted Answer

To interpret sensory information, plan and monitor movement, maintain homeostasis, and perform higher mental functions

Question 2

A patient presents with jerky, uncoordinated movements after suffering a head injury. Which brain region is most likely damaged, and what is the condition called?

Accepted Answer

Cerebellum; cerebellar ataxia

Question 3

Which of the following statements about the organization of gray and white matter in the brain and spinal cord is correct?

Accepted Answer

White matter is superficial in the spinal cord and deep in the brain

Question 4

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

Accepted Answer

Difficulty producing speech sounds

Question 5

Which structure is responsible for relaying most incoming sensory information to the cerebral cortex?

Accepted Answer

Thalamus

Question 6

A lumbar puncture is performed to collect cerebrospinal fluid (CSF) for diagnostic purposes. Which space is targeted during this procedure?

Accepted Answer

Subarachnoid space

Question 7

Which of the following best explains the role of the basal nuclei in voluntary movement?

Accepted Answer

They initiate voluntary movement and secrete dopamine to enhance inhibitory output

Question 8

A patient is unable to recognize faces but can identify objects by name. Which region of the brain is most likely affected?

Accepted Answer

Right temporal cortex

Question 9

Which equation best represents the relationship between the mass of the brain ($$m$$), the percentage of total blood flow it receives ($$p$$), and the total blood flow ($$B) $$during rest?

Accepted Answer

$$B_{brain} = p 	imes B_{total}$$

Question 10

Which of the following is TRUE regarding the sensory homunculus in the primary somatosensory cortex (S1)?

Accepted Answer

The lips and hands have disproportionately larger representation

Question 11

Which brain region is primarily responsible for maintaining homeostasis of vital functions such as heart rate and digestion?

Accepted Answer

Hypothalamus

Question 12

A patient with damage to the hippocampus would most likely experience which of the following?

Accepted Answer

Impaired ability to form new declarative memories

Question 13

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

Accepted Answer

It cushions the brain, maintains temperature, removes wastes, and increases buoyancy

Question 14

Which of the following is a correct sequence for the development of the brain from the neural tube?

Accepted Answer

Neural tube → primary brain vesicles → secondary brain vesicles → mature brain divisions

Question 15

Which of the following best describes the role of the cerebellum in motor learning?

Accepted Answer

It integrates sensory information and corrects motor errors over time, making movements more fluid

Question 16

Which equation best represents the conversion of immediate memory ($$M_{im}) to $$long-term memory ($$M_{lt}) $$through consolidation ($$C$$)?

Accepted Answer

$$M_{lt} = M_{im} + C$$

Question 17

Which of the following is TRUE regarding cerebral lateralization?

Accepted Answer

Language recognition is lateralized in the left temporal cortex

Question 18

Which structure connects the right and left cerebral hemispheres, allowing communication between them?

Accepted Answer

Corpus callosum

Question 19

A patient is experiencing loss of sensation in the skin and muscles of the lower extremities. Which region of the spinal cord is most likely affected?

Accepted Answer

Lumbar enlargement

Question 20

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

Accepted Answer

It regulates sleep/wake cycles, internal organ functions, and aspects of behavior

Study Notes: The Central Nervous System (CNS) - Structure, Function, and Integration

Study Guide - Practice Questions

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