Relacionar Columnas The eyesVersión en línea The eyes por Alba Castellano Navarro 1 Eyelid 2 Pupil 3 Eyelashes 4 Fovea 5 Iris 6 Lacrimal glands 7 Sclera 8 Vitreous humour 9 Optic nerve 10 Eyebrows 11 Aqueous humour 12 Retina 13 Cristaline lens Are hairs that stop sweat from entering the eye. 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. 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. It is transparent, gelatinous fluid filling the eyeball. It is a transparent fluid between the cornea and the crystalline lens. It transmits the information to the brain. Is a circular structure. Its colour varies from person to person. Is an area of the retina with many cones. It is responsible for sharp vision. It is the hole in the center of the iris. 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 grow out of the eyelids. They limit access to light and stop particles from entering the eyes.