Question 1

Which structure in the eye is responsible for the highest visual acuity and contains only cones?

Accepted Answer

Fovea centralis

Question 2

A patient presents with increased intraocular pressure due to blocked drainage of aqueous humor. What condition are they most likely experiencing?

Accepted Answer

Glaucoma

Question 3

Which cranial nerve innervates the lateral rectus muscle of the eye?

Accepted Answer

VI (Abducens)

Question 4

Which of the following best describes the function of the sphincter pupillae muscle?

Accepted Answer

Constricts the pupil under parasympathetic stimulation

Question 5

A person with myopia has an eyeball that is too long. Which lens type is used to correct this condition?

Accepted Answer

Concave lens

Question 6

Which structure is responsible for producing tears that contain mucus, antibodies, and lysozymes?

Accepted Answer

Lacrimal gland

Question 7

Which of the following is TRUE regarding the optic disc?

Accepted Answer

It is the blind spot where the optic nerve exits the eye

Question 8

A patient complains of seeing halos around lights and has blurred vision. Which pathophysiological process is most likely occurring?

Accepted Answer

Increased pressure compressing the retina and optic nerve

Question 9

Which of the following best describes the pathway of light through the eye to the retina?

Accepted Answer

Cornea → aqueous humor → lens → vitreous humor → retina

Question 10

Which of the following statements about the cochlea is correct?

Accepted Answer

It contains the organ of Corti, which is the receptor organ for hearing

Question 11

Which cranial nerve carries impulses from the anterior two-thirds of the tongue for taste sensation?

Accepted Answer

Facial nerve

Question 12

A patient has sensorineural deafness. Which structure is most likely damaged?

Accepted Answer

Cochlear nerve

Question 13

Which of the following best explains why color blindness is more common in males?

Accepted Answer

It is inherited as an X-linked condition

Question 14

Which part of the ear is responsible for equalizing pressure between the atmosphere and the middle ear?

Accepted Answer

Pharyngotympanic (Eustachian) tube

Question 15

Which of the following is a function of the choroid layer of the eye?

Accepted Answer

Absorbs light to prevent reflection within the eye

Question 16

Which of the following best describes the role of the semicircular canals?

Accepted Answer

Detects dynamic equilibrium (rotational movement)

Question 17

Which of the following is TRUE regarding olfactory neurons?

Accepted Answer

They are replaced every 30–60 days

Question 18

A patient with astigmatism has blurred vision due to which of the following?

Accepted Answer

Unequal curvatures in the cornea or lens

Question 19

Which of the following best describes the function of the lacrimal punctum?

Accepted Answer

Drains tears from the eye surface into the lacrimal sac

Question 20

Which of the following is the correct sequence for the auditory pathway from the external environment to the auditory cortex?

Accepted Answer

External auditory canal → tympanic membrane → ossicles → oval window → cochlea → cochlear nerve → thalamus → auditory cortex

Special Senses: Vision, Olfaction, Gustation, Hearing, and Equilibrium

Study Guide - Practice Questions