Structure of the Eye BIO5 Pick the structure that matches the description 0.0 / 5 ? BiologyHuman, animal and plant physiologyA2/A-levelEdexcel Created by: KathCreated on: 31-05-14 13:52 thin, transparent layer to protect cornea from infection conjunctiva 1 of 13 curved, transparent disk on the anterior part of the sclera which focuses light cornea 2 of 13 circular hole in iris, size controlled by contractions of iris muscles pupil 3 of 13 focuses light on the retina lens 4 of 13 fluid that refracts light and maintains the shape of the cornea aqueous humour 5 of 13 the thick edge of choroid layer containing blood vessels for oxygenation of muscles ciliary body 6 of 13 clear, refractive gel in the posterior of the eye used to maintain the eyes shape vitreous humour 7 of 13 a tough outer membrane of of collagen which outer eye muscles anchor to sclera 8 of 13 layer preventing internal reflection of light due to melanin pigment choroid 9 of 13 contains the photoreceptor cells retina 10 of 13 part of retina directly opposite optical axis of lens, containing only cone cells fovea 11 of 13 where the optic nerve leaves the eye so no light receptors blind spot 12 of 13 bundle of nerve fibres which carry nerve impulses from retina to brain optic nerve 13 of 13
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