A blood clot recently formed in the SCN of Sam's hypothalamus. Fortunately, the clot was contained, and he seems to be doing very well. However, there has been a change in his behavior. What might you expect that change to be?
A) He has problems remembering names and faces.
B) His vision is slightly blurred all the time.
C) He seems to have problems with going to sleep and waking up at normal times.
D) His muscular coordination is not as good as it used to be.

Question

Quizplus · Accepted Answer

The SCN (suprachiasmatic nucleus) is responsible for regulating the body's circadian rhythm, which controls the sleep-wake cycle. A blood clot in the SCN could disrupt the body's ability to regulate this rhythm, resulting in problems with going to sleep and waking up at normal times. This would cause a change in behavior, making option C the best answer.

A Blood Clot Recently Formed in the SCN of Sam's