Posted: July 24th, 2017
A 45-year-old man has abnormal circadian variation in body temperature, disruption of the sleep-wake cycle, and an impaired nocturnal surge of secretion of melatonin. An MRI of the brain is most likely to show a lesion involving which of the following nuclei?
A 45-year-old man has abnormal circadian
variation in body temperature, disruption of the
sleep-wake cycle, and an impaired nocturnal
surge of secretion of melatonin. An MRI of the
brain is most likely to show a lesion involving
which of the following nuclei?
(A) Accessory optic
(B) Lateral preoptic
(C) Pretectal
(D) Suprachiasmatic
(E) Supraoptic
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