Lab: Eyes/Sight

Question 1

found on the anterior of planaria

Answer 1

ocelli

Question 2

type of cell that surrounds the photoreceptor neurons to shade them and absorb light

Answer 2

pigmented cells

Question 3

found in the center of each ocellus that absorb light to transmit into stimuli

Answer 3

photoreceptor neurons

Question 4

neurons send stimuli to the

Answer 4

anterior ganglia

Question 5

(jellyfish) contain a sensory structure that has one part for detection of gravity and another that detects light

Answer 5

rhopalia

Question 6

part of the rhopalia that detects light

Answer 6

ocelli

Question 7

each eye is composed of hundred of thousands identical optical units; compound eyes

Answer 7

ommatidia

Question 8

a crystalline cone that funnels light into photoreceptors; compound eye

Answer 8

corneal lens

Question 9

thousands of facets create a mosaic, wide-range view of patterns and movement; compound eye

Answer 9

photoreceptors

Question 10

image-forming eyes focus light into the internal surface

Answer 10

retina

Question 11

image-forming eyes only have a s—– l—, instead of thousands

Answer 11

single lense

Question 12

light sensitive aspect (rod and cones) found in the retina

Answer 12

photoreceptors

Question 13

sheep eye: found on the posterior end of the eye, sends stimuli from the image-forming eye to other neurons

Answer 13

optic nerve

Question 14

sheep eye: portion of retina that gather to form the optic nerve

Answer 14

optic disc

Question 15

sheep eye: white surface of the eye, reaches all the way round the eye

Answer 15

sclera

Question 16

sheep eye: cloudy surface over the pupil and iris, front-most part of the eye

Answer 16

cornea

Question 17

sheep eye: hard sphere found behind the pupil

Answer 17

lens

Question 18

sheep eye: gelatinous mass filling most of the interior

Answer 18

vitreous body

Question 19

sheep eye: black ring of smooth muscle that changes the shape of the lens, found just near the lens

Answer 19

ciliary body

Question 20

sheep eye: thin membrane found along the back wall of the whole eye containing rods and cones

Answer 20

retina

Question 21

sheep eye: dark layer behind the retina that absorbs light, colorful when looked at with naked eye

Answer 21

pigmented choroid coat

Question 22

area of the eye that forms the optic disc contains no rods or cones

Answer 22

blind spot