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