Question 1

Which of the following best describes the main function of the nervous system?

Accepted Answer

To coordinate all body functions, including both voluntary and involuntary actions, and regulate emotions.

Question 2

Which two organs make up the central nervous system?

Accepted Answer

Brain and spinal cord

Question 3

The peripheral nervous system is responsible for:

Accepted Answer

Communication between the central nervous system and the rest of the body.

Question 4

Which division of the peripheral nervous system brings sensory information to the central nervous system?

Accepted Answer

Afferent division

Question 5

Which of the following is a correct analogy for the function of sensory neurons in the nervous system?

Accepted Answer

They are like the lyrics of a song, noticeable and prominent.

Question 6

Which of the following is NOT an effector of the visceral motor division (autonomic nervous system)?

Accepted Answer

Skeletal muscle

Question 7

Which cell type in the central nervous system is primarily responsible for producing and circulating cerebrospinal fluid?

Accepted Answer

Ependymal cells

Question 8

What is the main function of Schwann cells in the peripheral nervous system?

Accepted Answer

Forming the myelin sheath around axons to increase signal speed

Question 9

Nodes of Ranvier are important for which process in nerve signal transmission?

Accepted Answer

Saltatory conduction

Question 10

Which of the following best describes the structure of a multipolar neuron?

Accepted Answer

A cell body with multiple dendrites, a single axon, and synaptic terminals

Question 11

Which equation best represents the typical resting membrane potential of a neuron?

Accepted Answer

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

Question 12

During the depolarization phase of an action potential, which ion moves into the neuron?

Accepted Answer

Sodium ($$Na^+)$$

Question 13

Which of the following best describes the role of voltage-gated channels in neurons?

Accepted Answer

They open in response to changes in membrane potential.

Question 14

Which of the following is a correct sequence of events at a chemical synapse?

Accepted Answer

Action potential arrives at the presynaptic terminal, neurotransmitter is released into the synaptic cleft, and binds to postsynaptic receptors.

Question 15

Which region of the brain is primarily responsible for regulating emotions, hormone production, and autonomic functions?

Accepted Answer

Diencephalon

Question 16

Which lobe of the cerebral cortex is most involved in decision making and problem solving?

Accepted Answer

Frontal lobe

Question 17

Which area of the cerebral cortex is responsible for initiating voluntary muscle movements?

Accepted Answer

Primary motor cortex

Question 18

Which neurotransmitter is released by preganglionic neurons in both the sympathetic and parasympathetic divisions of the autonomic nervous system?

Accepted Answer

Acetylcholine

Question 19

Which physiological effect is caused by sympathetic stimulation of the heart?

Accepted Answer

Accelerated heart rate and increased force of contraction

Question 20

A patient is experiencing increased sweating, dilated pupils, and rapid heartbeat after a stressful event. Which division of the autonomic nervous system is primarily responsible for these responses?

Accepted Answer

Sympathetic division

Anatomy & Physiology Study Guide: The Nervous System

스터디 가이드 - 연습 문제

학습 가이드 - 플래시카드