$$\text{Motor Cortex} \rightarrow \text{Basal Ganglia} \rightarrow \text{Spinal Cord}$$

Question 1

Which of the following best describes the primary function of the basal ganglia?

Accepted Answer

Sending motor messages from the motor regions of the cortex down to the spinal cord

Question 2

A patient with Parkinson's disease is likely to experience which of the following symptoms due to impairment of the basal ganglia?

Accepted Answer

Difficulty initiating and stopping movement

Question 3

Which structure in the limbic system is primarily responsible for processing fear and aggression?

Accepted Answer

Amygdala

Question 4

If a lab mouse has its amygdala deactivated and is shown a cat, how would its behavior differ from a normal mouse?

Accepted Answer

Normal mouse: fear / Lab mouse: uninterested

Question 5

Which of the following statements about the thalamus is correct?

Accepted Answer

It processes all sensory signals except for olfactory signals.

Question 6

The hypothalamus is most directly involved in which of the following functions?

Accepted Answer

Motivation related to survival, such as hunger and thirst

Question 7

Which limbic system structure is essential for spatial navigation and memory formation?

Accepted Answer

Hippocampus

Question 8

A patient suffers damage to the hippocampus. Which of the following symptoms would most likely result?

Accepted Answer

Difficulty with spatial navigation and forming new memories

Question 9

Which of the following is NOT a function of the basal ganglia?

Accepted Answer

Processing sensory signals

Question 10

Which structure acts as a relay station for most sensory signals to the cortex?

Accepted Answer

Thalamus

Question 11

A person is unable to feel fear when exposed to dangerous situations. Which brain structure is most likely damaged?

Accepted Answer

Amygdala

Question 12

Which of the following best describes the role of the hypothalamus in the limbic system?

Accepted Answer

Motivates behaviors related to survival, such as hunger and thirst

Question 13

Which of the following is true regarding the thalamus?

Accepted Answer

It is important for sleep and consciousness.

Question 14

If the basal ganglia are damaged, which of the following would most likely occur?

Accepted Answer

Difficulty initiating and stopping movement

Question 15

Which equation best represents the flow of motor signals from the cortex to the spinal cord via the basal ganglia?

Accepted Answer

$$	ext{Motor Cortex} ightarrow 	ext{Basal Ganglia} ightarrow 	ext{Spinal Cord}$$

Question 16

Which structure is most directly involved in the regulation of hormones and internal body states?

Accepted Answer

Hypothalamus

Question 17

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

Accepted Answer

Impaired ability to relay sensory signals to the cortex

Question 18

Which of the following best describes the relationship between the amygdala and emotional processing?

Accepted Answer

The amygdala processes emotions, especially fear and aggression.

Question 19

Which structure is most likely to be activated when a person is navigating a new city using a map?

Accepted Answer

Hippocampus

Question 20

Which of the following equations best represents the role of the thalamus in sensory processing?

Accepted Answer

$$	ext{Sensory Input} ightarrow 	ext{Thalamus} ightarrow 	ext{Cortex}$$

The Subcortical Forebrain: Basal Ganglia, Thalamus, and Limbic System

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