Question 1

Which of the following best explains why olfactory information is unique among the special senses in its pathway to the brain?

Accepted Answer

Olfactory information bypasses the thalamus and projects directly to the cerebral cortex.

Question 2

A patient presents with a loss of taste sensation on the anterior two-thirds of the tongue. Which cranial nerve is most likely affected?

Accepted Answer

Facial nerve (CN VII)

Question 3

Which structure is responsible for the production and drainage of aqueous humor, and what condition can result from its impaired drainage?

Accepted Answer

Ciliary body; glaucoma

Question 4

Which of the following best describes the process of accommodation in the eye?

Accepted Answer

The lens becomes rounder for near vision and flatter for distant vision.

Question 5

A person with a deficiency in vitamin A is most likely to experience which visual problem, and why?

Accepted Answer

Night blindness, due to impaired regeneration of retinal in rods

Question 6

Which of the following equations correctly represents the relationship between frequency ($$f$$), wavelength ($$\lambda$$), and the speed of sound ($$v) in $$the context of hearing?

Accepted Answer

$$v = f 	imes \lambda$$

Question 7

Which of the following best explains why the image formed on the retina is upside down and reversed left to right?

Accepted Answer

The lens refracts light rays so that they cross before reaching the retina.

Question 8

Which of the following is a correct sequence for the auditory pathway from the cochlea to the auditory cortex?

Accepted Answer

Cochlear nerve → cochlear nucleus → inferior colliculus → medial geniculate body → auditory cortex

Question 9

A patient has difficulty detecting rotational movements of the head but can still sense linear acceleration. Which structure is most likely damaged?

Accepted Answer

Semicircular ducts

Question 10

Which of the following best describes the mechanism by which sweet, bitter, and umami tastes are detected?

Accepted Answer

Binding to G protein–coupled receptors, activating second messenger pathways

Question 11

Which of the following statements about rods and cones is correct?

Accepted Answer

Cones are responsible for sharp, color vision and are concentrated in the fovea.

Question 12

A patient with damage to the optic chiasm would most likely experience which visual deficit?

Accepted Answer

Loss of peripheral (temporal) vision in both eyes

Question 13

Which of the following best explains the role of the stapedius muscle in the middle ear?

Accepted Answer

It reduces movement of the stapes at the oval window to protect the inner ear from loud sounds.

Question 14

Which of the following is the correct order of structures that tears pass through from the lacrimal gland to the nasal cavity?

Accepted Answer

Lacrimal gland → lacrimal puncta → lacrimal canaliculi → lacrimal sac → nasolacrimal duct

Question 15

Which of the following best describes the function of the otolithic membrane in the vestibular system?

Accepted Answer

It moves with gravity or linear acceleration, bending hair cell stereocilia to signal head position.

Question 16

Which of the following best explains why a person with astigmatism has blurred or distorted vision?

Accepted Answer

Light passing through the cornea and lens is not refracted properly due to irregular curvature.

Question 17

Which of the following best describes the process by which sound frequency is encoded in the cochlea?

Accepted Answer

High-frequency sounds vibrate the basilar membrane near the oval window; low-frequency sounds vibrate it near the apex.

Question 18

Which of the following is a real-life example of central adaptation in olfaction?

Accepted Answer

Becoming less aware of the smell of your own perfume after wearing it for several hours

Question 19

Which of the following best explains why children are often more sensitive to tastes than adults?

Accepted Answer

Children have more taste receptors, which decline in number with age.

Chapter 17: The Special Senses – Study Notes for Anatomy & Physiology

스터디 가이드 - 연습 문제

학습 가이드 - 플래시카드