Exam 4: Vision

What percentage of all sensory receptors are located in the eyes?

• 50%

• 60%

• 70%

• 80%

Which sense is considered our dominant sense?

• Hearing

• Smell

• Vision

• Taste

Tags

NGSS.MS-LS1-8

What is the colored portion of the eye made up of smooth muscle called?

• Pupil

• Sclera

• Iris

• Eyelid

What is the function of the pupil in the eye?

• It is the white of the eye.

• It is the colored portion of the eye.

• It is the hole within the iris that can change diameter.

• It is the opening created when the eyelid is up.

What is the white part of the eye, which is an extension of the dura mater, called?

• Iris

• Sclera

• Pupil

• Palpebral fissure

What is the term for the opening created when the eyelid is up?

• Iris

• Pupil

• Sclera

• Palpebral fissure

What is the primary function of the serous cells in the lacrimal gland?

• Produce tears

• Absorb light

• Protect the retina

• Control eye movement

Through which structure do tears first drain from the eye?

• Nasolacrimal duct

• Lacrimal sac

• Lacrimal canaliculi

• Nasal cavity

What is the final destination of the tears after passing through the nasolacrimal duct?

• Lacrimal sac

• Nasal cavity

• Lacrimal canaliculi

• Tear duct

How many extrinsic eye muscles control the movement of each eye?

• 4

• 5

• 6

• 7