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Human eye is a ball-like organ, composed of tunics. The outermost tunic is called sclera. Its central anterior portion is modified so that it makes a transparent "window" into the eye. This is called cornea.
Middle coat is the choroid, blood rich nutritive tunic.
The innermost tunic is retina, where the photoreceptors lie.
Welcome to this educational aid for teachers and students of biology or medicine!
It contains drawings, images and virtual reality worlds enhancing the understanding of biological structures.
You need java running on yor computer in order to see the virtual reality worlds.
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