Question 1

Which of the following best describes the function of the myelin sheath in neural transmission?

Accepted Answer

It insulates axons, increasing the speed and efficiency of electrical signal transmission.

Question 2

A patient with damage to Broca's area would most likely experience which of the following symptoms?

Accepted Answer

Impaired ability to produce spoken language.

Question 3

Which neurotransmitter is primarily associated with pleasure, reward, and voluntary movement, and is deficient in Parkinson's disease?

Accepted Answer

Dopamine

Question 4

During the action potential, which ion flows into the neuron, causing depolarization?

Accepted Answer

Sodium ($$Na^+)$$

Question 5

Which process removes excess neurotransmitters from the synaptic cleft after they have performed their function?

Accepted Answer

Reuptake

Question 6

A drug that blocks the reuptake of serotonin would most likely be classified as which of the following?

Accepted Answer

Agonist

Question 7

Which brain region is most directly responsible for forming new long-term memories?

Accepted Answer

Hippocampus

Question 8

Damage to which lobe of the cerebral cortex would most likely result in deficits in planning and decision making?

Accepted Answer

Frontal lobe

Question 9

Which neurotransmitter is most closely associated with learning and memory, and is excitatory in the central nervous system?

Accepted Answer

Glutamate

Question 10

A person with damage to the left prefrontal cortex, as in the case of Phineas Gage, would most likely exhibit which of the following changes?

Accepted Answer

Impaired moral judgment and impulse control

Question 11

Which of the following best describes the role of glial cells in the nervous system?

Accepted Answer

They support, nourish, and protect neurons.

Question 12

Which of the following is a correct sequence of events during the firing of a neuron?

Accepted Answer

Resting potential → Action potential → Repolarization → Refractory period

Question 13

Which brain structure acts as a sensory relay, sending signals such as sight and sound to the appropriate areas of the cortex?

Accepted Answer

Thalamus

Question 14

Which neurotransmitter is most directly involved in regulating sleep and alertness?

Accepted Answer

GABA

Question 15

A person who has undergone split-brain surgery may have difficulty with which of the following tasks?

Accepted Answer

Integrating information between the left and right hemispheres

Question 16

Which of the following best explains the concept of neural plasticity?

Accepted Answer

The brain's capacity to change and adapt by reorganizing synaptic connections.

Question 17

Which of the following is a real-world example of an antagonist drug effect?

Accepted Answer

A medication that blocks dopamine receptors to reduce symptoms of schizophrenia.

Question 18

Which lobe of the brain contains the somatosensory cortex, responsible for processing touch, pressure, pain, and temperature?

Accepted Answer

Parietal lobe

Question 19

If a person has a deficiency in acetylcholine, which of the following conditions are they most at risk for developing?

Accepted Answer

Alzheimer's disease

Question 20

Which of the following best describes the difference between excitatory and inhibitory neurotransmitters?

Accepted Answer

Excitatory neurotransmitters make it more likely a neuron will fire, while inhibitory neurotransmitters make it less likely.

Neurons, Neurotransmission, and the Brain: Foundations of Biological Psychology

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