Structure Of The Eye

Question 1

What is the outermost layer of the eye called?

Answer 1

Sclera

Question 2

True or False: The cornea is responsible for most of the eye’s light refraction.

Answer 2

True

Question 3

What structure in the eye adjusts to control the amount of light entering?

Answer 3

Iris

Question 4

Fill in the blank: The _____ is the transparent front part of the eye that covers the iris and pupil.

Answer 4

Cornea

Question 5

Which part of the eye contains photoreceptor cells?

Answer 5

Retina

Question 6

What is the function of the lens in the eye?

Answer 6

To focus light onto the retina

Question 7

Multiple Choice: What is the primary function of the pupil? A) To protect the eye B) To allow light to enter C) To focus images D) To provide color

Answer 7

B) To allow light to enter

Question 8

What is the gel-like substance that fills the eye called?

Answer 8

Vitreous humor

Question 9

True or False: The optic nerve transmits visual information from the retina to the brain.

Answer 9

True

Question 10

Fill in the blank: The _____ is the colored part of the eye surrounding the pupil.

Answer 10

Iris

Question 11

What is the purpose of the tear film?

Answer 11

To keep the eye moist and protect it from debris

Question 12

Multiple Choice: Which part of the eye is responsible for sharp central vision? A) Retina B) Cornea C) Lens D) Macula

Answer 12

D) Macula

Question 13

What is the role of the ciliary body?

Answer 13

To control the shape of the lens for focusing

Question 14

True or False: The fovea is the area of the retina with the highest concentration of rods.

Answer 14

False

Question 15

What is the blind spot in the eye?

Answer 15

The area on the retina where the optic nerve exits, lacking photoreceptors

Question 16

Fill in the blank: The _____ is a thin layer of tissue that lines the inside of the eyelids and covers the white part of the eyeball.

Answer 16

Conjunctiva

Question 17

What is the primary function of the rods in the retina?

Answer 17

To detect light and dark, contributing to night vision

Question 18

Multiple Choice: Which part of the eye is responsible for color vision? A) Rods B) Cones C) Lens D) Iris

Answer 18

B) Cones

Question 19

What is the aqueous humor?

Answer 19

The fluid in the front part of the eye that maintains intraocular pressure

Question 20

True or False: The lens becomes thicker to focus on distant objects.

Answer 20

False

Question 21

What is the primary function of the sclera?

Answer 21

To provide structure and protection to the eye

Question 22

Fill in the blank: The _____ is the part of the eye that contains the highest density of cones.

Answer 22

Fovea

Question 23

What is the role of the eyelids?

Answer 23

To protect the eye and spread tears across the surface

Question 24

Multiple Choice: What type of vision do cones primarily contribute to? A) Night vision B) Peripheral vision C) Color vision D) Depth perception

Answer 24

C) Color vision

Question 25

What is the function of the choroid layer?

Answer 25

To provide nourishment to the retina and absorb excess light

Question 26

True or False: The pupil changes size in response to changes in light intensity.

Answer 26

True

Question 27

What is the main function of the optic disc?

Answer 27

To serve as the point where the optic nerve leaves the eye, creating a blind spot