Sensation and perception

Question 1

The eye functions as what

Answer 1

transducer

Question 2

Light entering eye ->

Answer 2

Refracted as it passes cornea - passes through pupil controlled by iris and refracted by the lens
Cornea and lens act together as a compound lens to project image onto retina

Question 3

Retina

Answer 3

Converts light to energy into neural activity

Question 4

Retina is specialized

Answer 4

To detect differences in the intensity of light falling on different
parts of i

Question 5

Axons of retinal neurons are bundled into

Answer 5

Optic nerves

Question 6

Pupil

Answer 6

The opening allows light to pass and reach retina

Question 7

Pupil is surrounded by

Answer 7

iris

Question 8

Iris pigmentation is

Answer 8

Pigmentation is eye color

Question 9

Two muscles in iris

Answer 9

To make it smaller and larger by contractions

Question 10

Pupil and iris covered by

Answer 10

cornea

Question 11

Sclera

Answer 11

White of eye

Question 12

What moves eyeball in orbit

Answer 12

extraocular muscles

Question 13

Optic nerves

Answer 13

carrying axons from the retina, exits from the
back of the eye, passes through the orbit, and reaches the base
of the brain near the pituitary gland

Question 14

Cornea

Answer 14

Fluid - aqueous humour- transparent lens

Question 15

Cornea changes what

Answer 15

shape of the lens to focus

Question 16

Aqueous humour is between

Answer 16

cornea and lens

Question 17

Vitreous humour

Answer 17

Between lens ans retina

Question 18

Direct pathway for visual info

Answer 18

photoreceptors -> bipolar cells -> ganglion cells

Question 19

Ganglion cells -> only source of output from the retina

Answer 19

fire action potentials in response to light and these impulses
propagate down the optic nerve to the rest of the brain.

Question 20

Horizontal cells

Answer 20

receive input from the photoreceptors and project neurites
laterally to influence surrounding bipolar and photoreceptors.

Question 21

Amacrine cells

Answer 21

receive input from bipolar cells and project laterally to influence
surrounding ganglion cells, bipolar cells and other amacrine cells.

Question 22

Photoreceptors

Answer 22

Only light sensitive cells in the retina

Question 23

Layers of retina

Answer 23

Vitreous humour, ganglion cells, bipolar cells, photoreceptors