Question 1

Which part of the neuron is primarily responsible for receiving messages from other neurons?

Accepted Answer

Dendrite

Question 2

During the action potential, what causes the inside of the neuron to become positively charged?

Accepted Answer

Sodium ions entering the cell

Question 3

A patient is unable to speak fluently and mispronounces words after a stroke. Which brain area is most likely damaged?

Accepted Answer

Broca's area

Question 4

Which neuroimaging technique is best suited for creating a detailed image of brain structure using magnetic fields and radio waves?

Accepted Answer

Magnetic resonance imaging (MRI)

Question 5

A person is startled by a loud noise and their heart rate increases rapidly. Which division of the nervous system is primarily responsible for this response?

Accepted Answer

Sympathetic division

Question 6

Which of the following best describes the function of the myelin sheath?

Accepted Answer

It insulates and speeds up neural impulses along the axon.

Question 7

A drug that blocks the reuptake of dopamine in the synapse would most likely:

Accepted Answer

Increase the amount of dopamine available to the postsynaptic neuron.

Question 8

Which structure is responsible for relaying sensory information to the appropriate areas of the cortex?

Accepted Answer

Thalamus

Question 9

Damage to which area of the brain is most likely to result in problems with balance and coordination?

Accepted Answer

Cerebellum

Question 10

Which of the following best explains why the pituitary gland is called the 'master gland'?

Accepted Answer

It secretes hormones that regulate other endocrine glands.

Question 11

A person with damage to the right parietal lobe may experience spatial neglect. Which symptom would most likely be observed?

Accepted Answer

Inability to recognize objects in the left visual field

Question 12

Which neurotransmitter is most directly involved in muscle contraction and is released in excess by the venom of a black widow spider?

Accepted Answer

Acetylcholine

Question 13

A split-brain patient is shown an object in their left visual field. Which of the following is most likely true?

Accepted Answer

They cannot verbally name the object but may be able to draw it with their left hand.

Question 14

Which of the following best describes the 'all-or-none' principle of the action potential?

Accepted Answer

A neuron either fires completely or does not fire at all.

Question 15

Which lobe of the brain contains the primary visual cortex?

Accepted Answer

Occipital lobe

Question 16

A person is experiencing increased heart rate, dilated pupils, and reduced digestion after a car accident. Which division of the autonomic nervous system is most active?

Accepted Answer

Sympathetic division

Question 17

Which of the following is a function of the hypothalamus?

Accepted Answer

Regulating hunger, thirst, and sexual behavior

Question 18

Which of the following best describes neuroplasticity?

Accepted Answer

The ability of the brain to change its structure and function in response to experience or trauma

Question 19

A person is able to process auditory information but cannot make sense of what they hear. Which area is most likely damaged?

Accepted Answer

Wernicke's area

Question 20

Which of the following is a correct equation for the resting membrane potential of a neuron?

Accepted Answer

$$V_{rest} \approx -70\ \mathrm{mV}$$

Chapter 2: The Biological Perspective – Study Notes

Guida di studio - Domande di pratica

Study guide - Flashcard