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the iris has two layers, name them and one of them has anoother layer. list what they do.
which layer is avascular?
by what sturcture is the other one supplied by?
what is the ora serrata?
which layer is avascular?
by what sturcture is the other one supplied by?
what is the ora serrata?
optic and non visual part
optic part has two layers>
– a neural layer which is light receptive
-a pigment cell layer, which consists of a single layer of cells that reinforces the light-absorbing properties of the choroid in
reducing the scattering of light in the eyeball. T
the neural layer is avascular and receives oxygen and nutrients by diffusion from the choriocapillaris of the choroid.
The pigment cell layer is supplied by the central artery of the retina, a branch of the ophthalmic artery, and drained by a corresponding system of retinal veins which unite to form the central vein of the retina.
The optic part of the retina terminates anteriorly along the ora serrata (L. serrated edge
The non-visual part of the retina is an anterior continuation of the pigment cell layer and a layer of supporting cells over the ciliary body (the ciliary part of the retina) and the posterior surface
of the iris (the iridial part of the retina),
optic part has two layers>
– a neural layer which is light receptive
-a pigment cell layer, which consists of a single layer of cells that reinforces the light-absorbing properties of the choroid in
reducing the scattering of light in the eyeball. T
the neural layer is avascular and receives oxygen and nutrients by diffusion from the choriocapillaris of the choroid.
The pigment cell layer is supplied by the central artery of the retina, a branch of the ophthalmic artery, and drained by a corresponding system of retinal veins which unite to form the central vein of the retina.
The optic part of the retina terminates anteriorly along the ora serrata (L. serrated edge
The non-visual part of the retina is an anterior continuation of the pigment cell layer and a layer of supporting cells over the ciliary body (the ciliary part of the retina) and the posterior surface
of the iris (the iridial part of the retina),
