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14 terms

Exercise 24: Special Senses: Vision

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tarsal glands
sebaceous glands associated with the hair follicle that secrete an oily substance
sclera
fibrous portion of the eye, observable as the "white of the eye"
cornea
through which light enters the eye
choroid
blood rich nutritive region containing a dark pigment that prevents light scattering within the eye
retina
sensory layer of the eye, 2 layered, pigmented epithelium and neural layer
rods, cones
what are the two photoreceptors?
macula lutea
area of high cone density
fovea centralis
minute pit that contains mostly cones, visual acuity
tapetum lucidum
what reflects the light in the eye of animals?
accommodation
the ability of the eye to focus differentially for objets of near vision
real image
the image formed in the retina
myopia
nearsightedness; correction is concave les; focus in front of the retina
hyperopia
farsightedness; correction convex lens; focus behind the retina
convergence
medial eye movements for near vision