01:830:310 Lecture Notes - Lecture 13: Optic Chiasm, Amacrine Cell, Ganglion Cell Layer
8 Feb 2018
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Document Summary
Relays allow sensory interaction: when you stub your toe and dance around, hitting your head/arm/body part and you rub it to alleviate the pain. All sensory systems have representation in the cortex: sensory, auditory, and somatosensory information, goes in through action potentials, each sensory system is composed of subsystems. Retina is in the back of the eyeball this is where you give signals leading you to see (light hits this and information is taken in from here) Eyeball is round shape but encased in skeletal orbits (eye sockets) iris (colored part) iris changes shape (makes accommodations and adapts to light) Cornea refracts (bends) the light 80% of light refraction is done by the cornea: bends light to go into pupil. Conjunctiva goes up and connects to eyelids (conjunctivitis is infection of this area red blood vessels swarm towards this area) Behind lens is vitreous humor makes sure eye stays round/the shape it is meant to stay.
