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30 Cards in this Set
- Front
- Back
Visual system: receptors
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retinal receptor cells, rods, cones
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receptive organ
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structure of the eyeball
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connections back to the CNS
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optic nerves and pathways of crossover at the optic chiasm
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processing center
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lateral geniculate nucleus, optic radiations
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interpretation of a the vis system done by
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primary and secondary visual cortices
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eye layer - posterior to the ora serrata
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choroid, neural retina, pigmented epithelium
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middle layer - between the ora serrata and the limbus
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ciliary body, ciliary muscle, and lens
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layer anterior to the limbus
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cornea, iris, pupillary dilator and constrictor muscles, conjunctiva
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there's more
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anterior, posterior chambers, production and flow of aqueous humor, schlemm canal, vitreous humor, optic dics, fovea, central artery of the retina, macula, fovea
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sclera is continuous with...
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the dura mater
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sclera made of
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collagenous fibers
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what zone does the limbus become the sclera
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limbus
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middle layer is called
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uvea
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what's in the uvea
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choroids posteriorly, and the ciliary body and stroma of the iris
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innermost layer is from?
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outgrowth of CNS
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innermost layer is two layered - why?
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oreflects it origin from the infolding of the optic cup
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anterior of the innermost layer is serrated - what' it called
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ora serrata
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inner layer of the retina is
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neural retina
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outer layer is called
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the pigmented layer
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What does this have to do with detached retina
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the two layered set up in the retinal gives rise to the detachment of one from the ohter
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Eyes develop from 4 sources...
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neuro ectoderm, surface ectoderm of the head, mesoderm between the first two layers, and neural creat cells
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neuroectoderm of the forebrain produces?
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retina, post layers of the iris, optic nerve
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surface ecto?
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lens, corneal epithelium
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mesoderm?
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fibrous and vascular coats
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neural rest cells produce
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choroid, sclera, corneal endothelium
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eye dev first evident what week
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4th
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what's 1st?
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optic grooves appear in the neural folds at the cranial end of the embryo
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Next?
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optic grooves evaginate- form optic vesicles
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What do the optic vesicles do?
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Project from the wall of the forebrain into the adjacent mesenchyme
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formation of the optic vesicle is induced by?
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mesenchyme adjacent to the dev brain.
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