Eye, Cross Section

Bildnummer 12653030
Eye, Cross Section
The mammalian eye allows vision. Rod and cone cells in the retina allow light perception and vision including colour differentiation and the perception of depth. The eye is made up of three coats, enclosing three transparent structures. The outermost layer, known as the fibrous tunic, is composed of the cornea and sclera. The middle layer, known as the vascular tunic or uvea, consists of the choroid, ciliary body, and iris. The innermost is the retina, which gets its circulation from the vessels of the choroid as well as the retinal vessels, which can be seen in an ophthalmoscope. Within these coats are the aqueous humour, the vitreous body, and the flexible lens. The aqueous humour is a clear fluid that is contained in two areas: the anterior chamber between the cornea and the iris, and the posterior chamber between the iris and the lens. The lens is suspended to the ciliary body by the suspensory ligament (Zonule of Zinn), made up of fine transparent fibers.
Lizenzart: Lizenzpflichtig
Credit: Science Photo Library / Omikron / Science Source
Bildgröße: 3130 px × 4200 px
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