Question 1

Which of the following best describes the main function of the Central Nervous System (CNS)?

Accepted Answer

It is composed of the brain and spinal cord and acts as the main integration center for the body.

Question 2

The Peripheral Nervous System (PNS) is responsible for which of the following?

Accepted Answer

Connecting the CNS to limbs and organs, and transmitting sensory and motor signals.

Question 3

Which equation correctly represents the division of the Peripheral Nervous System (PNS)?

Accepted Answer

$$PNS = Somatic + Autonomic$$

Question 4

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

Accepted Answer

Sympathetic division

Question 5

Which of the following is TRUE regarding the somatic nervous system?

Accepted Answer

It controls voluntary movement of skeletal muscles.

Question 6

During a period of relaxation after a stressful event, which division of the autonomic nervous system becomes more active?

Accepted Answer

Parasympathetic division

Question 7

Which of the following physiological changes is most likely to occur due to parasympathetic activation?

Accepted Answer

Decrease in heart rate

Question 8

If a patient has damage to the nerves outside the brain and spinal cord, which part of the nervous system is affected?

Accepted Answer

Peripheral Nervous System (PNS)

Question 9

Which of the following best describes the difference between the sympathetic and parasympathetic divisions?

Accepted Answer

Sympathetic division prepares the body for 'fight or flight', while parasympathetic division promotes 'rest and digest'.

Question 10

Which of the following scenarios best illustrates the function of the somatic nervous system?

Accepted Answer

You move your hand away from a hot stove.

Question 11

Which of the following is NOT a function of the autonomic nervous system?

Accepted Answer

Controlling voluntary movement of skeletal muscles

Question 12

A student is taking an exam and feels anxious. Which nervous system division is most likely to be active?

Accepted Answer

Sympathetic division

Question 13

Which of the following statements about the organization of the nervous system is correct?

Accepted Answer

The CNS is composed of the brain and spinal cord, while the PNS includes nerves outside these structures.

Question 14

Which of the following best describes the role of the autonomic nervous system?

Accepted Answer

It regulates involuntary functions such as heart rate, digestion, and glandular activity.

Question 15

Which division of the autonomic nervous system is responsible for constricting pupils and stimulating digestion?

Accepted Answer

Parasympathetic division

Question 16

If $$X$$ represents the number of major subdivisions of the peripheral nervous system, what is the value of $$X$$?

Accepted Answer

$$X = 2$$

Question 17

Which of the following is a correct sequence of nervous system organization from broadest to most specific?

Accepted Answer

Peripheral Nervous System → Autonomic Nervous System → Sympathetic Division

Question 18

Which of the following best explains why the sympathetic and parasympathetic divisions often have opposite effects on the same organ?

Accepted Answer

They release different neurotransmitters and have opposing actions to maintain homeostasis.

Question 19

Which of the following is most likely to occur during 'fight or flight' response?

Accepted Answer

Increased heart rate and dilation of pupils

Question 20

A patient is unable to control their voluntary muscle movements but has normal heart rate and digestion. Which part of the nervous system is most likely affected?

Accepted Answer

Somatic nervous system

Organization of the Nervous System: Structure and Function

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