Question 1

Which structure is responsible for producing tears that contain antibodies and lysozyme, helping to protect and lubricate the eye?

Accepted Answer

Lacrimal apparatus

Question 2

A patient presents with blurred vision due to improper focusing of light on the retina. Which of the following conditions is most likely if the focal point is in front of the retina, and what is the corrective lens type?

Accepted Answer

Myopia; corrected with concave lenses

Question 3

During accommodation for near vision, which sequence of events occurs in the eye?

Accepted Answer

Ciliary body contracts, ciliary zonule slackens, lens bulges

Question 4

Which part of the retina is responsible for the sharpest vision and contains only cones?

Accepted Answer

Fovea centralis

Question 5

A patient with Ménière’s syndrome is most likely to experience which combination of symptoms?

Accepted Answer

Progressive deafness and vertigo

Question 6

Which equation best represents the relationship between the focal length ($$f$$), object distance ($$d_o$$), and image distance ($$d_i) $$for the eye’s lens?

Accepted Answer

$$\frac{1}{f} = \frac{1}{d_o} + \frac{1}{d_i}$$

Question 7

Which structure in the ear is directly responsible for equalizing air pressure on both sides of the tympanic membrane?

Accepted Answer

Pharyngotympanic tube

Question 8

If a patient has sensorineural deafness, which of the following is most likely affected?

Accepted Answer

Receptors or neural transmission of impulses to the brain

Question 9

Which of the following best describes the function of the maculae in the vestibule?

Accepted Answer

Report on head movements when the body is not moving (static equilibrium)

Question 10

A 70-year-old patient complains of decreased taste and smell sensitivity. Which physiological change is most likely responsible?

Accepted Answer

Decrease in the number of gustatory and olfactory receptors

Question 11

Which pathway correctly traces the transmission of visual impulses from the retina to the visual cortex?

Accepted Answer

Optic nerve → optic chiasma → optic tract → thalamus → optic radiation → occipital lobe

Question 12

Which of the following is a function of the conjunctiva?

Accepted Answer

Produces a lubricating mucus and covers the anterior eyeball

Question 13

Which of the following best explains why infants have poor visual acuity and lack color vision and depth perception?

Accepted Answer

The retina and neural pathways are immature and continue to develop until age 8 or 9

Question 14

Which of the following structures is involved in dynamic equilibrium and responds to rotational movements of the head?

Accepted Answer

Crista ampullaris in the ampullae of semicircular canals

Question 15

Which of the following is true regarding the humors of the eye?

Accepted Answer

Vitreous humor is gel-like and never replaced

Question 16

Which of the following best describes the role of chemoreceptors in the special senses?

Accepted Answer

Respond to dissolved chemicals

Question 17

A patient with otosclerosis is most likely to experience which type of hearing loss?

Accepted Answer

Conduction deafness

Question 18

Which of the following statements about the spiral organ of Corti is correct?

Accepted Answer

It contains hair cells anchored to the basilar membrane, with hairs embedded in the tectorial membrane

Question 19

Which of the following best explains why odors can stimulate emotional responses and recall of memories?

Accepted Answer

Olfactory pathways are closely linked to the limbic system

Chapter 8: Special Senses – Eye, Ear, Smell, and Taste

Guida di studio - Domande di pratica

Study guide - Flashcard