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Ch. 8 eyeball
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Terms in this set (9)
Eyeball is composed
Of three tunics and its interiour is gilled with fluids called humors that help maintain its shape
Sclera
The outer most tunic, protextive thick white connextive tissue also called the fibrous tunic
Cornea
Transparent "window" through which light enters the eye and is supplied with nerve endongs
Vascular tunic
The middle coat of the eyeball has three distinguishable regions
Choroid
A bloodrich nutritive tunic that contains a dark pigment. The pigment prevents light from scattering inside the eye
Ciliary body
Moving anterior rly the choroid is modified to form two smooth muscle structures the _______ to which the lens is attached by a suspensory ligament called ciliary zonule and then the iris
Pupil
The pigmented iris has a rounded opening through which light passes
Retina
The innermost sensory tunic of the eye is the delicate white
Rods and cones
Called photoreceptors because they respond to light
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