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Flashcards in Embryology of the Eye Deck (49)
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1

what are the four sources responsible for development of the eye

neuroectoderm
surface ectoderm
mesoderm
neural cest cells

2

neuroectoderm give rise to

retina and posterior layers of the iris and optic nerve

3

surface ectoderm gives rise to

lens and corneal epithelium

4

mesoderm gives rise to

fibrous and vascular coats of the eye

5

neural crest cells give rise to

choroid, sclera, and corneal endothelium

6

the optic vesicles grow out of the

forebrain

7

the optic vesiicles elongate to form

optic stalks

8

the cavity of the optic vesicles is continous with the

forebrain

9

surface ectoderm forms

lens placodes

10

the lens placodes will form________

lens pits which will invaginate to form lens vesicle

11

the distal ends of the optic stalk will widen and

form optic cups and become associated with the lens vesicle

12

what does the hyaloid artery supply

the developing lens

13

the optic stalk becomes

optic nerve

14

the hyaloid artery will become

central artery of the retina (a branch from the opthalmic artery)

15

where does the retina develop from

walls of the optic cup

16

the outer layer of the optic cup becomes

pigmented retina

17

the inner layer of the optic cup becomes

neural (unpigmented) retina

18

what are deepest in the retina

photoreceptor cells

19

the ciliary body dervies from

choroid mesenchyme and both layers of the optic cup

20

the ciliary process is from

outer and inner layer of the optic cup

21

ciliary muscles are derived from

choroid mesenchyme at the anterior edge of the optic cup

22

_____________forms from the front edge of the optic cup

iris

23

edges of the optic cup grow together to form

pupil

24

the lens is derived from

surface ectoderm

25

what are the sources of the cornea

surface ectoderm, mesoderm, and neural crest cells

26

mesenchyme that surrounds the optic cup develops into

choroid and sclera

27

the conjunctival sac is

the space between the cornea and the eyelids (lined by ectoderm)

28

the eyelids are composed of what

surface ectoderm with a core of mesenchyme (neural crest)

29

orbicularis oculi is derived from

2nd pharngeal arch

30

how do the lacrimal glands form

they form from invaginations of the ectoderm of the conjunctival sac