Which of the following is TRUE?
A)Circadian rhythms are regulated by the release of the neurotransmitter melatonin by the suprachiasmatic nucleus.
B)Circadian rhythms remain stable regardless of the sleep-wake schedule people adopt.
C)There are more than 100 different bodily processes that systematically vary over the course of each day, including blood pressure, the secretion of hormones, and pain sensitivity.
D)There are two important neurotransmitters, serotonin and dopamine, that regulate the 24-hour biological clock.

Question

Quizplus · Accepted Answer

Option C is true. There are more than 100 different bodily processes that systematically vary over the course of each day, including blood pressure, the secretion of hormones, and pain sensitivity. Option A is false. While the suprachiasmatic nucleus plays a role in regulating circadian rhythms, it does so by responding to light rather than releasing melatonin. Option B is false. Circadian rhythms can be influenced by changes in sleep-wake schedules, such as those experienced during jet lag or shift work. Option D is false. While serotonin and dopamine are important neurotransmitters, neither regulates the 24-hour biological clock.

Which of the Following Is TRUE