(二)血管膜或中膜 l、虹膜Iris 口瞳孔 pupil a Contains sphincter pupillae瞳孔括约肌 (circular fibers)and dilator pupillae瞳孔开 大肌( radial fibers o Cornea and iris meet to form the iridocorneal angle虹膜角膜角
（二）血管膜或中膜 1、虹膜Iris ❑ 瞳孔pupil ❑ Contains sphincter pupillae 瞳孔括约肌 (circular fibers) and dilator pupillae 瞳孔开 大肌 (radial fibers) ❑ Cornea and iris meet to form the iridocorneal angle 虹膜角膜角 Up
2、睫状体 Cilliary bod Body a ring-shaped ickening anterior to equator, containing smooth muscle fibers睫 状突 Ciliary processes a series of some 60-80 projections producing aqueous humor 口睫状环 Ciliary ring
◼ 2、 睫状体Cilliary body ❑ Body a ring-shaped thickening anterior to equator, containing smooth muscle fibers睫 状突Ciliary processes a series of some 60~80 projections producing aqueous humor ❑ 睫状环Ciliary ring Up
Sinusⅴ enosis sclerae Ciliary Muscle iridocorneal angle Dilator Pupillae Sphincter pupillae Lens ary zonule Ciliary Processes Ciliary ring
Ciliary Processes Sphincter Pupillae Dilator Pupillae Sinus venosus sclerae ciliary zonule Ciliary ring Ciliary Muscle Iridocorneal angle Lens Up
3、脉络膜 Choroid a Thin, highly vascular in posterior 2/3 of eye o Contains brown pigmented cells and dense capillary plexus
◼ 3、脉络膜Choroid ❑ Thin, highly vascular in posterior 2/3 of eye ❑ Contains brown pigmented cells and dense capillary plexus Up
(三)视网膜或内膜 视网膜盲部 Pars caeca retina 视网膜虹膜部 Pars iridica retinae 视网膜睫状体部 Pars ciliaris retinae 视网膜视部 Pars optica retinae a Lines the choroids Composed of two lavers An outer pigment cell layer Inner neural layer(four layers
（三）视网膜或内膜 视网膜盲部Pars caeca retina 视网膜虹膜部 Pars iridica retinae 视网膜睫状体部 Pars ciliaris retinae 视网膜视部Pars optica retinae ❑ Lines the choroidsComposed of two layers ◼ An outer pigment cell layer ◼ Inner neural layer (four layers) Up