眼---英-组织学和胚胎学上课讲义
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眼---英-组织学和胚胎学
sclera cornea pupil
eyeball
choroid retina
macula
lens iris Ciliary body
Optic nerve
cornea
▪ Corneal epi.: nonkeratinized stratified squamous epi.,5-6 layers of cells.
▪ Sclera venous sinus: in the irisocorneal angle contains the apparatus for the outflow of aqueous humor which is produced by the ciliary processes .
sclera
▪ The corneoscleral limbus : is the transitional zone between the cornea and sclera . An abrupt transition from the avascular cornea to the well-vascularized sclera occurs here.
▪ Corneal endothelium：a single layer of squamous cells covering the surface of the cornea that faces the anterior chamber. Provides for metabolic exchange between the cornea and aqueous humor.
1. anterior layer：a discontinuous layer of fibroblasts and
melanocyte. 2. stroma：LCT, highly vascularized and with abundant
pigmented cells. constrictor pupillae muscle.
▪ Bowman’s membrane：anterior basement membrane ,a homogeneous-appearing layer on which the corneal epi.rests.
▪ Corneal stroma: composed of thin lamellae each lamella consists of parallel bundles of collagen fibrils. No blood or lymphatic vessels.
Cormeal epithelium Anterior basement membrane
Corneal stroma
Posterior basement membrane Corneal endothelium
sclera
▪ Is an opaque layer that consists predominantly of dense CT.
lens
Ciliary process
retina
Represent the innermost layer of the eye
Neural retina: inner layer that contains photoreceptors. RPE, the outer layer that rests on and attached to the choroid.
பைடு நூலகம்
Ciliary body
▪ Is the thickened anterior portion of the vascular coat and is located between the iris and choroid.
Ciliary muscle The stroma Epithelial layer
▪ Fovea centralis : a shallow depression located lateral to the optic papilla. Is the area of greatest visual acuity.
▪ Macula lutea: a yellow-pigmented zone surrounds the fovea.
Ganglion C Bipolar C
▪ descemet’s membrane：posterior basement membrane ,is the basal lamina of corneal endothelial cells. Separates the corneal endothelium from the adjacent corneal stroma.
Neural retina
▪ Nonvisual part,
▪ Optic part.
▪ Optic papilla: where the optic nerve joins the retina . Is devoid of photoreceptors. A blind spot in the visual field.
Anterior chamber
Scleral venous sinus
Trabecular meshwork
iris
Pupil locate in the center. Anterior chamber：between the iris and the cornea. Posterior chamber：between the iris and vitreous body.
3. epi. : anterior-myoepithelium, dilator pupillae muscle.
4.
posterior-pigment epithelial cells.
iris
Anterior chamber
前房
Constrictor Pupillae M
Posterior chamber
sclera cornea pupil
eyeball
choroid retina
macula
lens iris Ciliary body
Optic nerve
cornea
▪ Corneal epi.: nonkeratinized stratified squamous epi.,5-6 layers of cells.
▪ Sclera venous sinus: in the irisocorneal angle contains the apparatus for the outflow of aqueous humor which is produced by the ciliary processes .
sclera
▪ The corneoscleral limbus : is the transitional zone between the cornea and sclera . An abrupt transition from the avascular cornea to the well-vascularized sclera occurs here.
▪ Corneal endothelium：a single layer of squamous cells covering the surface of the cornea that faces the anterior chamber. Provides for metabolic exchange between the cornea and aqueous humor.
1. anterior layer：a discontinuous layer of fibroblasts and
melanocyte. 2. stroma：LCT, highly vascularized and with abundant
pigmented cells. constrictor pupillae muscle.
▪ Bowman’s membrane：anterior basement membrane ,a homogeneous-appearing layer on which the corneal epi.rests.
▪ Corneal stroma: composed of thin lamellae each lamella consists of parallel bundles of collagen fibrils. No blood or lymphatic vessels.
Cormeal epithelium Anterior basement membrane
Corneal stroma
Posterior basement membrane Corneal endothelium
sclera
▪ Is an opaque layer that consists predominantly of dense CT.
lens
Ciliary process
retina
Represent the innermost layer of the eye
Neural retina: inner layer that contains photoreceptors. RPE, the outer layer that rests on and attached to the choroid.
பைடு நூலகம்
Ciliary body
▪ Is the thickened anterior portion of the vascular coat and is located between the iris and choroid.
Ciliary muscle The stroma Epithelial layer
▪ Fovea centralis : a shallow depression located lateral to the optic papilla. Is the area of greatest visual acuity.
▪ Macula lutea: a yellow-pigmented zone surrounds the fovea.
Ganglion C Bipolar C
▪ descemet’s membrane：posterior basement membrane ,is the basal lamina of corneal endothelial cells. Separates the corneal endothelium from the adjacent corneal stroma.
Neural retina
▪ Nonvisual part,
▪ Optic part.
▪ Optic papilla: where the optic nerve joins the retina . Is devoid of photoreceptors. A blind spot in the visual field.
Anterior chamber
Scleral venous sinus
Trabecular meshwork
iris
Pupil locate in the center. Anterior chamber：between the iris and the cornea. Posterior chamber：between the iris and vitreous body.
3. epi. : anterior-myoepithelium, dilator pupillae muscle.
4.
posterior-pigment epithelial cells.
iris
Anterior chamber
前房
Constrictor Pupillae M
Posterior chamber