Cornea, Pupil and Lens Cornea Avascular stroma Outer stratified squamous epi. Inner endothelium Aqueous humor; anterior chamber Air.

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Presentation transcript:

Cornea, Pupil and Lens

Cornea Avascular stroma Outer stratified squamous epi. Inner endothelium Aqueous humor; anterior chamber Air

Anterior Surface of Cornea Air

Posterior Surface of Cornea Descemet’s membrane; basement membrane of endothelium Anterior chamber; aqueous humor Endothelium

Iris and Ciliary Apparatus Anterior chamber (AC) Posterior chamber (PC) Ciliary body

Iris Pigmented epithelium Sphincter pupillae muscle AC PC

Ciliary Body Lens Suspensory ligaments/zonal fibers of lens Ciliary process

Ciliary Apparatus

Canal of Schlemm SC: canal of Schlemm T: trabeculae - drain to CS C: cornea AC: anterior chamber CB: ciliary body I: iris Red arrow: flow path of aqueous humor to CS PC Ciliary process

Lens Suspensory ligaments of lens Capsule

Lens Capsule Anterior epithelium Lens fiber cells

Layers of Retina

Rod cellsCone cells

Fovea: Cones Only Light

Optic Nerve Optic disc

Diagram of Inner Ear

Inner Ear/Cochlea Modiolus Scala tympani (ST) Scala Vestibuli (SV) Organ of Corti (OC) Scala media (SM) Helicotrema Spiral ganglia (SG) Bony cochlea Spiral ligament (SL)

Organ of Corti ST SV SM Basilar membrane (BM) SG Vestibular membrane (VM) OC SL

Organ of Corti

Tectorial membrane (TM) Cochlear nerve fibers Hair cells Basilar membrane (BM) SM ST SL VM

Cochlear nerve fibers Organ of Corti TM Basilar membrane Outer hair cells Inner hair cells SM

Sensory Villi on Hair Cell: SEM

Taste Buds

Taste Buds on Fungiform Papilla of Tongue Taste buds

Taste Buds Apical pore with sensory cells in taste bud

Olfactory Epithelium

Olfactory Mucosa Olfactory epithelium: sustentacular/pseudostratified columnar epithelium with long microvilli

Olfactory Epithelium

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