functions of the specific parts of the eyes

Question 1

function of sclera?

Answer 1

tough layers that gives shape and protect the eyes

Question 2

functions of choroid?

Answer 2

contains blood capillaries to supply oxygen and nutrients

Question 3

function of retina?

Answer 3

contains photoreceptor cells that will produce impulses

Question 4

functions of yellow spots?

Answer 4

the area on the retina that is rich in receptors and most sensitive to light

Question 5

functions of blind spot?

Answer 5

the area on the retina that has no photoreceptor at all

Question 6

functions of optic nerve

Answer 6

transmit nerve impulses to the brain

Question 7

functions of vitreous humour

Answer 7

Jelly-like substance in the eyeball that mantains the shape of the eye

Question 8

functions of lens?

Answer 8

refracts and focuses light on the retina

Question 9

functions of ciliary muscles

Answer 9

controls the thickness of the lens that ensures the image is formed on the retina

Question 10

functions of iris

Answer 10

controls the size of the pupil and light entering the eye

Question 11

functions of cornea

Answer 11

focuses the light on the retina

Question 12

functions of pupil

Answer 12

controls the amount of light entering the eye

Question 13

functions of conjuntiva

Answer 13

protects the cornea

Question 14

functions of aqueous humour

Answer 14

refracts and focuses light entering the eye

Question 15

functions of suspensory ligaments

Answer 15

holds the lens in position

Question 16

general question about sight:

what is an eye exactly?

Answer 16

The eye is a sensory organ. It collects light from the visible world around us and converts it into nerve impulses. The optic nerve transmits these signals to the brain, which forms an image so thereby providing sight.