anatomy
Forum Guru
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A 48-year-old man comes to his physician because his wife noticed that his right pupil is "small." Physical examination shows that the right pupil is constricted and does not react to light. His left pupil is normal. These findings are most likely due to a lesion involving which of the following structures on the right?
A) Cervical spinal cord
B) Frontal eye fields
C) Lateral geniculate nucleus
D) Optic tract
E) Visual cortex
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| kmp
Forum Elite
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A) Cervical spinal cord
with pupils can think of 2 lesions
CN 3 lesion causes ptosis with dilated pupil
sympathetic lesion causes ptosis with constricted pupils.
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| anatomy
Forum Guru
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Posts: 423
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correct.thanx for information.
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