1.4 Flashcards
1
Q
What is homeostasis?
A
The bodies ability to maintain a stable internal environment when there is a change outside.
2
Q
What is negative feedback?
A
Negative feedback is feedback that cause the stimulus to end or decline.
3
Q
What is positive feedback?
A
Positive feedback is feedback that enhances the original stimulus.
4
Q
What is an example of positive feedback?
A
- Child birth
- Bleeding and forming a clot
5
Q
What is an example of negative feedback?
A
- Sweating
- Goose bumps
6
Q
What is vasoconstriction?
A
Constriction of blood vessels which cause the blood pressure to increase. Also draws the blood to the core which keeps it warmer.
7
Q
What is vasodilation?
A
Vasodilation is when the blood vessels dilate causing the blood pressure to drop. It also helps to bring back the bodies temperature.
