Question 1

Which lobe of the brain is primarily responsible for processing visual information?

Accepted Answer

Occipital lobe

Question 2

A patient presents with Bell’s palsy. Which cranial nerve is most likely affected?

Accepted Answer

Cranial nerve VII (Facial nerve)

Question 3

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

Accepted Answer

They protect the brain and spinal cord by providing structural support and a barrier against infection.

Question 4

Which type of receptor is most likely to adapt quickly to a constant stimulus?

Accepted Answer

Meissner’s corpuscles (touch receptors)

Question 5

A patient is unable to move their right eye laterally. Which cranial nerve is most likely damaged?

Accepted Answer

Cranial nerve VI (Abducens nerve)

Question 6

Which equation best represents the relationship between the frequency ($$f) $$and wavelength ($$\lambda) of $$brain waves, given the speed of propagation ($$v$$)?

Accepted Answer

$$f = \frac{v}{\lambda}$$

Question 7

Which of the following best describes the steps in the regeneration of nerve fibers in the peripheral nervous system (PNS)?

Accepted Answer

Schwann cells form a regeneration tube, macrophages clear debris, and axons regrow along the tube.

Question 8

Which of the following is NOT a function of the ventricles in the brain?

Accepted Answer

Transmitting electrical impulses

Question 9

A patient exhibits diplopia (double vision). Which cranial nerves should be tested for function?

Accepted Answer

III (Oculomotor), IV (Trochlear), VI (Abducens)

Question 10

Which of the following best describes the organization of the major regions of the brain from superior to inferior?

Accepted Answer

Cerebrum, diencephalon, brainstem, spinal cord

Question 11

Which of the following is a correct sequence for the steps in a reflex arc?

Accepted Answer

Receptor → Sensory neuron → Integration center → Motor neuron → Effector

Question 12

Which equation would you use to calculate the conduction velocity ($$v) of a $$nerve impulse if you know the distance ($$d) $$and the time ($$t) it $$takes?

Accepted Answer

$$v = \frac{d}{t}$$

Question 13

Which type of nerve is classified as 'mixed'?

Accepted Answer

A nerve that contains both sensory and motor fibers

Question 14

Which of the following best describes the difference between sensation and perception?

Accepted Answer

Sensation is the detection of stimuli, while perception is the conscious interpretation of those stimuli.

Question 15

Which of the following best explains why spinal cord neurons cannot regenerate?

Accepted Answer

Oligodendrocytes in the CNS inhibit regeneration and lack a regeneration tube.

Question 16

Which type of receptor is stimulated by changes in chemical concentration?

Accepted Answer

Chemoreceptors

Question 17

A patient with nystagmus is experiencing involuntary eye movements. Which cranial nerve is most likely involved?

Accepted Answer

Cranial nerve VIII (Vestibulocochlear nerve)

Question 18

Which aspect of sensory perception allows you to recognize a familiar melody regardless of the instrument playing it?

Accepted Answer

Pattern recognition

Question 19

Which equation would you use to estimate the total number of action potentials ($$N) $$generated in a nerve over a period ($$T) if $$the frequency ($$f) is $$known?

Accepted Answer

$$N = f 	imes T$$

Question 20

During the patellar reflex, which sequence correctly describes the flow of information?

Accepted Answer

Stretch receptor in quadriceps → Sensory neuron → Spinal cord → Motor neuron → Quadriceps contracts

ANP College Exam 5 Study Guide: CNS & PNS Concepts

Study Guide - Practice Questions

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