homeostasis and negative feedback system Flashcards
1
Q
homeostasis
A
ability to maintain constant internal environment
2
Q
negative feedback system
A
a type of control in which the conditions being regulated are brought back to a set value as soon as it is detected that they have deviated from it
3
Q
input
A
change to system
4
Q
receptor
A
measures level of the variable
5
Q
co-ordinator/control centre
A
where level of operation is set, receives information from receptor, compares variable with set value and dispatches commands to effectors
6
Q
effectors
A
brings about a second change to the system (in the opposite direction of the input)
7
Q
output:
A
conditions returned to set value
8
Q
feedback loop (to receptor)
A
establish the change that has been corrected and causes effectors to be switched off
