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MABS Embryology > chapter 15 terms > Flashcards

chapter 15 terms Flashcards

development of the eye

1
Q

distal face of optic vesicle

A

retinal disk

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2
Q

narrowed portion connecting to forebrain

A

optic stalk

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3
Q

formed by invagination of retinal disk

A

optic cup

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4
Q

located between inner and outer layers of optic cup&raquo_space; continuous with lumen of optic stalk&raquo_space; continuous with cavity of forebrain

A

intraretinal space

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5
Q

longitudinal groove that develops on surface of optic cup and optic stalk

A

optic fissure

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6
Q

thickening of surface ectoderm&raquo_space; induced by approaching retinal disk

A

lens placode

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7
Q

invagination of lens placode mirroring the formation of the optic cup

A

lens pit

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8
Q

pinches off from surface ectoderm

A

optic vesicle

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9
Q

develop from epithelia at equatorial edge of lens&raquo_space; will continue through ~age 20

A

secondary lens fibers

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10
Q

failure of optic fissure to complete

A

coloboma of the iris&raquo_space; can be a genetic

coloboma of the retina, sclera and ciliary body can also occur

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11
Q

distal hyaloid vessels degenerate from lens to retinal wall

A

during fetal period

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12
Q

remaining conduit through vitreous body

A

hyaloid canal

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13
Q

portion of hyaloid vessels that remains

A

central artery/vein of retina

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14
Q

opaque dot on lens where hyaloid artery attached

A

Mittendorf’s dot

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15
Q

opaque lens

A

congenital cataracts

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16
Q

inner and outer layers fail to fuse

A

congenital retinal detachment

17
Q

occurs between pigmented epithelium and neural retina

A

non-congenital retinal detachment

18
Q

space between fused folds and cornea&raquo_space; lined with ectoderm derived epithelial that differentiates into conjunctiva

A

conjunctival sac

19
Q

typically presents as a small notch in superior eyelid

A

coloboma of the eyelids

MABS Embryology (17 decks)

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