The Human Biological Clock Flashcards
1
Q
What is a Zeitgeber?
A
It is a stimulus that resets the biological clock.
2
Q
Give 4 examples of a Zeitgeber?
A
Bright light, exercise and temperature.
3
Q
What part of the brain controls circadian rhythms?
A
The suprachiasmatic nucleus.
4
Q
What pathway is involved in the relay of photic information to the brain to aid the body’s circadian rhythm?
A
The Retinohypthalamic tract.
5
Q
What is the main pacemacker for endogenous rhythms?
A
The suprachiasmatic nucleus.
6
Q
Where is the suprachiasmatic nucleus located?
A
It is located in the hypothalamus, directly above the optic chiasm.
