Homeostasis Flashcards
Define Homeostasis
Homeostasis is a mechanism that maintains a stable internal environment despite the changes present in the external environment.
The regulation of homeostasis depends on three mechanisms. They are…
Receptors
Control centre
Effectors
Define Receptor.
The receptor is the sensing component responsible for monitoring and responding to changes in the external or internal environment.
What is the function of the Control Centre.
It receives and processes information from the receptor.
What is the function of effectors?
The effector responds to the commands of the control centre. It could either oppose or enhance the stimulus.
If the effector’s response opposes the stimulus, then it is a _______ loop.
Negative
If the effector’s response enhances the stimulus, then it is a ______ loop.
Positive