3.6.4.1 Homeostasis and negative feedback Flashcards
1
Q
What is negative feedback?
A
When a change causes a response that leads to a reduction in that change (return to optimum)
2
Q
Describe the sequence of events that occur during a response to a stimulus (both hormonal and nervous)
A
Stimulus->Receptor->Coordinator->Effector->Response
3
Q
Define homeostasis.
A
The maintenance of a constant internal environment.
4
Q
To what are we referring when we say that homeostasis maintain our ‘internal environment’?
A
The tissue fluids.
5
Q
Which conditions are maintained by homeostasis?
A
- Temperature
- Blood/tissue fluid water potential
- Blood glucose concentration
