BIOS1171 Lecture Notes - Lecture 15: Visual Cortex, Pupillary Light Reflex, Oculomotor Nerve
22 Aug 2018
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Document Summary
Path taken by light: eyes are located anteriorly, 2 eyes for binocular vision (for depth perception) 3 structures sustaining/supplying the retina: 3 layers of retina: Sclera: white of eye, protects and shapes eye, attaches eye to extraocular muscles. Aqueous humour: found in anterior segment (anterior & posterior chambers, fluid filling the spaces in front of the lens, circulation, produced by ciliary body anterior segment (posterior chamber) Through the narrow cleft between the lens & back of iris through the pupil into anterior chamber drain out of the eye via schlemm"s canal. Input = optic nerve: output = oculomotor nerve, produce tear, are supplied by. Tears: tears are produced by the lacrimal (tear) gland, tears are removed by the inner corner of the eye (hole that drains into nose, supplied by cranial nerve vii [7] facial nerve. These layers are semi-transparent axons of ganglion cells are unmyelinated. Darker to prevent scattering of light & maintains photorecepto rs metabolically.
