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Unformatted text preview: d) pupil- opening eye, appears as black spot e) lens- behind pupil and iris held in place by suspensory ligaments, tension relaxed lens more convex, when focus on close objects; tension increased lens flattens, occurs when looking at a distance 1)) anterior compartment two chambers divided by iris; anterior cavity between cornea and iris, Posterior chamber between iris and lens 2)) aqueous humor- clear watery fluid between chambers, recycled through blood stream 3)) posterior compartment behind lens called posterior cavity, gel like fluid helps support eyeball Called vitreous humor, not recycled 3) Nervous consist of retina, blood vessels a) function retina- detection of light and transportation of impulses to optic n. b) three layers of retina- Sensory layer 1)) nearest to retina responds to light (photoreceptor), rods and cones 2)) middle layer- bipolar neurons- transmit impulses to inner layer 3)) inner- multipolar with large cells called ganglion cells...
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- Spring '11
- Human Anatomy, cornea- anterior transparent