Homeostasis Flashcards
1
Q
Homeostasis
A
The regulation of conditions inside the body to maintain a stable internal environment, in response to both internal and external conditions
2
Q
What re the 3 things in automatic control?
A
- receptors
- coordination centres
- effectors
3
Q
Receptors
A
detect a change
4
Q
Coordination centres
A
Interpret that change
5
Q
Effectors
A
Carries out the change
6
Q
why does the body need to maintain optimal conditions
A
For optimum enzyme action and cell function
6
Q
What does the nody do when you’re too cold
A
- vasoconstriction
- less heat energy i lost to
surroundings
- less heat energy i lost to
- hairs stand up
= insulating layer of air - shiver
- generate more body heat
7
Q
body when you’re too hot
A
- vasodilation
- help transfer heat to environment
- sweat
- transfers energy to environment
- hairs lie flat
8
Q
A
