Question 1

Which neural component is primarily responsible for receiving incoming signals from other neurons?

Accepted Answer

Dendrites

Question 2

During the action potential, what is the main event that occurs in Step 2: Action Potential?

Accepted Answer

Sodium ions ($$Na^+) $$rush into the neuron

Question 3

Which glial cell function is most directly related to the formation of myelin in the nervous system?

Accepted Answer

Insulating axons to increase signal speed

Question 4

A patient is experiencing movement difficulties and has been diagnosed with Parkinson's disease. Which neurotransmitter is most likely deficient?

Accepted Answer

Dopamine

Question 5

Which process describes the removal of neurotransmitters from the synaptic cleft by being taken back into the presynaptic neuron?

Accepted Answer

Reuptake

Question 6

If a drug increases the activity of GABA in the brain, what is the most likely effect?

Accepted Answer

Decreased brain activity and increased inhibition

Question 7

Which brain region is primarily responsible for vital functions such as breathing and heart rate?

Accepted Answer

Medulla

Question 8

Damage to which area of the brain is most likely to result in difficulty producing speech, as seen in Broca's aphasia?

Accepted Answer

Broca's area

Question 9

Which of the following best describes the function of the thalamus?

Accepted Answer

Sends sights, sounds, and feelings to the right place in the brain

Question 10

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

Accepted Answer

Difficulty with long-term memory formation

Question 11

Which neurotransmitter is most closely associated with learning and memory, and is excitatory?

Accepted Answer

Glutamate

Question 12

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

Accepted Answer

The brain's ability to adapt and change based on experience and learning

Question 13

Which imaging technique uses magnetic fields to produce images of brain tissue and can show changes in metabolic activity over time?

Accepted Answer

Magnetic Resonance Imaging (MRI)

Question 14

A person is given a drug that blocks acetylcholine (ACh) receptors. Which of the following is a likely effect?

Accepted Answer

Increased risk of delirium

Question 15

Which lobe of the brain is primarily responsible for processing somatosensory information such as touch, pain, and temperature?

Accepted Answer

Parietal lobe

Question 16

Which of the following best describes the role of the prefrontal cortex (PFC)?

Accepted Answer

Responsible for thought, planning, and decision making

Question 17

Which equation best represents the movement of ions during the action potential in a neuron?

Accepted Answer

$$Na^+$$ ions move into the neuron, followed by $$K^+$$ ions moving out$

Question 18

Which of the following is a function of the limbic system?

Accepted Answer

Controlling emotion, smell, and memory

Question 19

A researcher wants to study the overall electrical activity of the brain by tracking amplitude and frequency. Which method should they use?

Accepted Answer

Electroencephalography (EEG)

Question 20

Which neurotransmitter is most likely to be involved in symptoms of schizophrenia, such as hallucinations and delusions?

Accepted Answer

Dopamine

Biological Psychology: Neurons, Neurotransmission, and Brain Structure

Study Guide - Practice Questions