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a and p lab sem. 2

eye and vision

QuestionAnswer
the ________ _______ of the retina lacks photoreceptor cells optic disk
the retica is part of the ________ or _________ tunic of the eye inner or nervous
the oculomotornerve (cranial nerve III) controls the ________ ______, ________ _______, ___________ _________, and __________ ___________ muscles of the eye medial rectus, superior rectus, inferior rectus, and inferior oblique
the _________ _______ of the middle tunic is deeply pigmented due to the presence of numerous melanocytes choroid coat
the second cranial nerve, the _________ nerve, is responsible for the sense of light optic
the pigment muscle of muscle of the middle tunic that is responsible for regulating the amount of light entering the eye is called the ________. sympathetic impulses will cause the __________ muscles of this structure to contract and dialte the pupil iris; radial
the transparent region of the outer tunic is the ________. this was the first organ to be succesfuly transplanted cornea
the _________, located directly behind the iris, is composed of highly specialized epithelial cells. like all epithelial tissues, it lacks blood vessels lens
the thin, membranous covering for anterior portion of eye is the __________. a common term for infection of this covering is "pink eye" conjunctiva
the superior oblique muscles are controlled by the _________ nerves (cranial nerve IV) and the lateral rectus muscles are controlled by the ____________ nerves (cranial nerves VI) trochlear; abducens
the ________ is the tough outer covering of the eye and is comprised of dense fibrous connective tissue sclera
the structure responsible for changing shape of lens in order to view objects at varoius distances is the ________ _________________ or ___________ ____________. ciliary appartus or siliary body
the ciliary body is controlled by the parasympathetic fibers of the _____________ nerve (cranial nerve III) and act to relax the suspensory ligaments oculomotor
Created by: allijeli
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