Homeostasis Flashcards
What is homeostasis
the regulation of the internal conditions of a cell or organism to maintain optimum conditions for function, in response to internal and external changes.
In homeostasis (negative feedback) in the nervous system what is the stimulus
Body temperature falls
In homeostasis (negative feedback) in the nervous system what is the receptor
Thermoreceptors activated
In homeostasis (negative feedback) in the nervous system what is the control centre
Thermoregulatory centre activated
In homeostasis (negative feedback) in the nervous system what is the effector
Muscles contract and hairs stand on end
What are the control mechanisms
Stimulus
Receptors
Control centre
Effectors
Response
What is negative feedback
The body’s mechanism for reversing a change so that it returns back to the optimum
What is the optimum point
The point at which the system operates best
