Biological Rhythms

Question 1

Define Endogenous Pacemaker.

Answer 1

internal body clocks which regulate biological rhythm
- e.g SCN

Question 2

Define Exogenous Zeitgebers.

Answer 2

external cues that entrain our biological rhythms
- e.g light

Question 3

Define Infradian rhythm. Name examples.

Answer 3

duration over 24 hours
- menstrual cycle, hibernation, Seasonal Affective Disorder

Question 4

Define Ultradian rhythm. Name examples.

Answer 4

duration less than 24 hours
- sleep stages

Question 5

Define Circadian rhythm. Name examples.

Answer 5

duration is 24 hours
- sleep/wake cycle