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WorksheetsBiological Rhythms & Sleep Review
Total questions: 10
Worksheet time: 5mins
What brain structure serves as the master clock for circadian rhythms?
Amygdala
Pineal gland
Suprachiasmatic nucleus (SCN)
Cerebellum
Which hormone does the pineal gland release to help you feel sleepy?
Serotonin
Melatonin
Cortisol
Dopamine
What is the average duration of a full sleep cycle?
45 minutes
60 minutes
90 minutes
120 minutes
Which sleep stage is known for vivid dreaming and muscle paralysis?
Stage 1
Stage 2
Stage 3
REM Sleep
What type of biological rhythm occurs on a cycle shorter than 24 hours?
Circadian
Ultradian
Infradian
Circannual
Which of the following is a potential consequence of disrupted circadian rhythms?
Improved memory
Mood changes
Stronger immune system
Decreased REM sleep only
What sleep disorder involves sudden attacks of sleep during the day?
Sleep apnea
Insomnia
Narcolepsy
Restless Legs Syndrome
Which brain structure links the endocrine system to sleep regulation?
Hypothalamus
Pons
Frontal lobe
Hippocampus
Adolescents are biologically wired to fall asleep:
Earlier than adults
Later than adults
At the same time as infants
Only after REM sleep occurs
Which tip best supports good sleep hygiene?
Use your phone before bed to wind down
Go to sleep and wake up at the same time every day
Drink coffee to help you sleep better
Watch TV in bed to fall asleep faster
