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Neuro II- CN II
Thomadaki Fall 2010
Question | Answer |
---|---|
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 |