Relier Pairs The eyesVersion en ligne The eyes par Alba Castellano Navarro 1 Vitreous humour 2 Retina 3 Eyelashes 4 Lacrimal glands 5 Iris 6 Aqueous humour 7 Fovea 8 Pupil 9 Cristaline lens 10 Sclera 11 Eyelid 12 Eyebrows 13 Optic nerve Is the opaque, white outer layer. The front part (cornea) is transparent. It is a transparent fluid between the cornea and the crystalline lens. Is a circular structure. Its colour varies from person to person. Are folds of skin that are opened and closed by the eye orbit muscles. They prevent the eyeball from drying out and stop particles from entering. Are hairs that grow out of the eyelids. They limit access to light and stop particles from entering the eyes. It is transparent, gelatinous fluid filling the eyeball. Produce tears, which clean the eye and keep it moist. They also destroy bacteria. It is the internal layer of the eyeball that contains photoreceptor cells called cones and rods. It is an elastic, transparent, biconvex structure behind the iris. Is an area of the retina with many cones. It is responsible for sharp vision. Are hairs that stop sweat from entering the eye. It is the hole in the center of the iris. It transmits the information to the brain.
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