Question 1

Which of the following is NOT considered a special sense?

Accepted Answer

Touch

Question 2

Approximately what percentage of all sensory receptors are located in the eyes?

Accepted Answer

$$70\%$$

Question 3

Which structure is responsible for producing an oily secretion that lubricates the eye?

Accepted Answer

Tarsal glands

Question 4

What is the main function of the conjunctiva?

Accepted Answer

Secretes mucus to lubricate and keep the eye moist

Question 5

Which part of the lacrimal apparatus is responsible for draining lacrimal fluid from the eyes medially?

Accepted Answer

Lacrimal canaliculi

Question 6

A patient presents with dry, irritated eyes. Which accessory structure is most likely malfunctioning?

Accepted Answer

Conjunctiva

Question 7

Which of the following best describes the path of lacrimal fluid from production to drainage?

Accepted Answer

Lacrimal gland → lacrimal canaliculi → lacrimal sac → nasolacrimal duct

Question 8

Which structure provides a cushion for the eye within the orbit?

Accepted Answer

Fat

Question 9

If the nasolacrimal duct is blocked, what symptom is most likely to occur?

Accepted Answer

Tears overflow onto the face

Question 10

Which of the following is NOT an accessory structure of the eye?

Accepted Answer

Retina

Question 11

A patient has an infection of the membrane that lines the eyelids and connects to the outer surface of the eye. What is this condition called?

Accepted Answer

Conjunctivitis

Question 12

Which structure meets at the medial and lateral commissure (canthus)?

Accepted Answer

Eyelids

Question 13

Which of the following is TRUE regarding the lacrimal gland?

Accepted Answer

It is situated on the lateral aspect of each eye

Question 14

Which structure provides passage of lacrimal fluid towards the nasal cavity?

Accepted Answer

Lacrimal sac

Question 15

Which glands are located between the eyelashes and help lubricate the eye?

Accepted Answer

Ciliary glands

The Special Senses: The Eye and Vision

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