Question 1

Which of the following best describes the role of basal cells in the olfactory epithelium?

Accepted Answer

They act as stem cells, replacing damaged olfactory receptor neurons.

Question 2

A patient is unable to distinguish between sour and bitter tastes. Which cranial nerve is most likely affected?

Accepted Answer

Cranial Nerve IX (Glossopharyngeal)

Question 3

Which sequence correctly traces the path of light through the eye to the point of highest visual acuity?

Accepted Answer

Cornea → Pupil → Lens → Fovea Centralis

Question 4

Which of the following best explains why sensitivity to bitter tastes is considered an evolutionary advantage?

Accepted Answer

Bitter tastes often indicate the presence of toxins, helping organisms avoid harmful substances.

Question 5

A person with myopia has difficulty seeing distant objects clearly. Which of the following best describes the optical issue in myopia?

Accepted Answer

Light focuses in front of the retina.

Question 6

Which structure in the ear is primarily responsible for detecting rotational movements of the head?

Accepted Answer

Semicircular canals

Question 7

Which of the following best describes the function of rods in the retina?

Accepted Answer

They are responsible for vision in dim light and peripheral vision.

Question 8

A patient presents with loss of voluntary muscle control, but retains sensory function. Which neurodegenerative disease is most consistent with these symptoms?

Accepted Answer

Amyotrophic Lateral Sclerosis (ALS)

Question 9

Which of the following best describes the labeled line principle in sensory perception?

Accepted Answer

Each sensory pathway carries only one modality of sensation to a specific region of the brain.

Question 10

Which brain wave pattern is most commonly observed in an awake, relaxed adult with closed eyes, and what is its typical frequency range?

Accepted Answer

Alpha waves; $$8-13 Hz$$

Question 11

Which of the following cranial nerves is responsible for transmitting auditory and equilibrium information to the brain?

Accepted Answer

Cranial Nerve VIII (Vestibulocochlear)

Question 12

Which of the following best describes the difference between peripheral adaptation and central adaptation?

Accepted Answer

Peripheral adaptation reduces receptor sensitivity, while central adaptation involves inhibition along sensory pathways in the CNS.

Question 13

Which of the following is NOT a function of the limbic system?

Accepted Answer

Control of voluntary muscle movement

Question 14

A person is exposed to a loud sound. Which of the following best describes how the ear interprets the volume (loudness) of this sound?

Accepted Answer

By the amplitude of vibrations in the basilar membrane

Question 15

Which of the following best describes the function of the auditory ossicles (malleus, incus, stapes)?

Accepted Answer

They amplify and transmit sound vibrations from the tympanic membrane to the oval window.

Question 16

Which of the following best explains why the optic disc is known as the 'blind spot'?

Accepted Answer

It is the point where the optic nerve exits the eye and contains no photoreceptors.

Question 17

Which mechanoreceptor is responsible for detecting deep pressure and vibration?

Accepted Answer

Pacinian (lamellated) corpuscles

Question 18

A patient reports dizziness when moving their head quickly. Which structure is most likely involved in this symptom?

Accepted Answer

Semicircular canals

Question 19

Which of the following best describes the path of sound from the tympanic membrane to the vestibulocochlear nerve (VIII)?

Accepted Answer

Tympanic membrane → Auditory ossicles → Oval window → Cochlea → Hair cells → Vestibulocochlear nerve

Question 20

Which of the following age-related changes is most likely to affect balance and equilibrium in older adults?

Accepted Answer

Degeneration of the semicircular canals and vestibular apparatus

Special Senses and Nervous System: Study Guide for ANP College Students

Study Guide - Practice Questions

Study Guide - Flashcards