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Neuro II- CN II

Thomadaki Fall 2010

QuestionAnswer
Optic nerve has cells of origin in ____ ganglion of cells of retina
Fibers of optic nerve ____ in _____; continue in _______ and synapse in the ________ partially cross in optic chiasm; optic tract; lateral geniculate body
Fibers from optic tract form the _______ which sends _____ reflex info to ________ Superior brachium; light; sup. colliculus
From lateral geniculate nucleau the fibers reach the _______ (___&____ gyri) via the ______ so that left halves of eyes' visual fields ultimately end in the _____ visual cortex and vice versa primary visual cortex (cuneus & lingual gyri); optic radiation; right
Function of CN II vision
Exam for CN II Visual acuity, visual field mapping, visual reflexes
What is visual field mapping important for? Glaucoma
Lesion to CN II leads to? Anopsia
CN II exits the skull via ____ optic canal
Created by: mrw2013