QUIZ 1. How long is a circadian rhythm pattern? a. 12 hours b. 24 hours c. 8 days d. 28 days Answer: b. The circadian rhythm lasts about 24 hours. Things like cortisol levels, temperature, and sleep follow a circadian rhythm pattern. 2. What part of the brain is linked most to the circadian rhythm of the body? a. Hypothalamus b. Thalamus c. Amygdala d. Hippocampus Answer: a. There is a nucleus inside the hypothalamus that connects to the retina so that the amount of light the brain is exposed to will help determine the circadian rhythm. 3. What part of the brain is least linked to the regulation of sleep? a. Pons b. Hippocampus c. Thalamus d. Hypothalamus Answer: b. Each of these areas play some role in the regulation of sleep except for the hippocampus, which is unrelated to sleep.
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