Sleep cycle

What type of rhythm is the sleep cycle?

• Infradian

• Circadian

• Ultradian

How long does one sleep cycle take to complete?

• 1 hour

• 90 minutes

• 1 day

• 25 minutes

What brain waves are shown immediately as we fall asleep?

• Delta

• Beta

• Theta

• Alpha

Which brain waves are shown during stage 2 sleep?

• Alpha

• Beta

• Theta

• Delta

Which THETA activity is a high voltage spike?

• K Complex

• Sleep spindle

How long into the sleep cycle do we enter into stage 3?

• Approx 5 mins

• Approx 15mins

• Approx 30 mins

• Approx 1 hour

Which brain waves characterize stages 3 and 4?

• Theta

• Delta

• Alpha

• Beta

Which sleep phenomenon occurs during stage 4 sleep?

• Sleep walking

• Dreaming

• Eye activity

Which is the correct order for sleep cycle?

• 1,2,3,4,5

• 1,2,3,4,5,1

• 1,2,3,4,3,2,REM

• 1,2,3,REM,1,2,3