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Special Senses: Accessory Eye Structures, Ear Structures, and Equilibrium Organs

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Special Senses: Accessory Eye Structures, Ear Structures, and Equilibrium Organs

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Questions and Answers

What is the function of lacrimal caruncle?

To produce tears

To produce an oily secretion for lubrication (correct)

To produce mucus

To protect the eye from foreign particles

Which of the following is NOT an accessory eye structure?

Tarsal glands

Ciliary glands

Conjunctivitis (correct)

Lacrimal caruncle

Where do the ducts of ciliary glands open?

Directly onto the cornea

At the eyelid margins

In the conjunctiva

At the eyelash follicles (correct)

What is the function of tarsal glands?

To produce an oily secretion for lubrication Signup and view all the answers

What is the main function of the conjunctiva?

To protect the eye from foreign particles Signup and view all the answers

What is the purpose of the accommodation-convergence reflex in vision?

To adjust focus for near objects Signup and view all the answers

What is the main function of the synkinesis described in the text?

Contraction of the ciliary muscle Signup and view all the answers

During the convergence reflex, what happens to the position of the eyeballs as the object moves closer to the subject’s eyes?

The eyeball moves medially Signup and view all the answers

Which extrinsic eye muscles control the movement of the eyes during the convergence reflex?

Rectus and oblique muscles Signup and view all the answers

What visual result may occur if the extrinsic eye muscles are unable to function properly?

Convergence insufficiency Signup and view all the answers

Why is it more of a strain on the extrinsic and intrinsic eye muscles to look at close objects than at far objects?

Accommodation is not required for distant vision Signup and view all the answers

What is the main purpose of photopupillary reflex?

To constrict the pupils in response to dim light Signup and view all the answers

What happens to the size of the pupil as a person focuses on a printed material?

The pupil constricts to reduce light rays Signup and view all the answers