Formation Of The Eyes ( Finals )

Question 1

Both eyes are derived from a single field of the neural?

Answer 1

neural plate

Question 2

a lateral diverticulum from the diencephalon forms an optic vesicle attached to the diencephalon by an?

Answer 2

optic stalk

Question 3

develops in the surface ectoderm where it is contacted by the optic vesicle

Answer 3

lens placode

Question 4

lens placode induces the optic vesicle to invaginate and form an?

Answer 4

optic cup

Question 5

lens placode induces the optic vesicle to invaginate and form an optic cup while the placode invaginates to form a ? that invades the concavity of the optic cup

Answer 5

lens vesicle

Question 6

What is formed by invagination of the ventral surface of the optic cup and optic stalk

Answer 6

optic fissure

Question 7

an optic fissure is formed by invagination of the ventral surface of the optic cup and optic stalk, and what artery invades the fissure to reach the lens vesicle?

Answer 7

hyaloid artery

Question 8

What forms the retina and contributes to formation of the ciliary body and iri

Answer 8

optic cup

Question 9

The outer wall of the cup forms what layer of the retina?

Answer 9

outer pigmented layer

Question 10

The outer wall of the cup forms the outer pigmented layer
of the retina, and the inner wall forms what layer of the retina?

Answer 10

neural layers

Question 11

The optic stalk becomes the ? as it fills with axons traveling from the retina to the brain

Answer 11

optic nerve

Question 12

The lens vesicle develops into the ?, consisting of layers of lens fibers enclosed within an elastic capsule.

Answer 12

lens

Question 13

This compartment develops from the concavity of the optic cup

Answer 13

vitreous compartment

Question 14

The vitreous compartment develops from the concavity of the optic cup, and the ? is formed from ectomesenchyme that enters the vitreous compartment through the optic fissure

Answer 14

vitreous body

Question 15

ectomesenchyme (from neural crest) surrounding the optic cup condenses to form inner and outer layers, the future?

Answer 15

choroid and sclera

Question 16

is formed by thickening of choroid ectomesenchyme plus two layers of epithelium derived from the underlying optic cup

Answer 16

ciliary body

Question 17

What is formed by choroid ectomesenchyme plus the superficial edge of the optic cup

Answer 17

iris

Question 18

the ectomesenchyme of the iris forms a ? that conveys an anterior blood supply to the developing lens

Answer 18

pupillary membrane

Question 19

the ectomesenchyme of the iris forms a pupillary membrane that conveys an anterior blood supply to the developing lens; when the membrane degenerates following development of the lens, what is formed?

Answer 19

pupil

Question 20

What develops from two sources: the layer of ectomesenchyme that forms sclera is induced by the lens to become inner epithelium and stroma, while surface ectoderm forms the outer epithelium

Answer 20

cornea

Question 21

cornea develops from two sources: the layer of 1.? that forms sclera is induced by the lens to become inner epithelium and stroma of the cornea, while ? forms the outer epithelium of the cornea

Answer 21

1. ectomesenchyme
2. surface ectoderm

Question 22

develops as a cleft in the ectomesenchyme situated between the cornea and the lens

Answer 22

anterior chamber of the eye

Question 23

What are formed by upper and lower folds of ectoderm, each fold includes a mesenchyme core; the folds adhere to one another but they ultimately separate either prenatally (ungulates) or approximately two weeks postnatally (carnivores)

Answer 23

eyelids

Question 24

ectoderm lining the inner surfaces of the eyelid folds becomes?

Answer 24

conjunctiva

Question 25

ectoderm lining the inner surfaces of the eyelid folds becomes conjunctiva, and what glands are develop by budding of conjunctival ectoderm?

Answer 25

lacrimal glands