HOMEOSTATIC CONTROL MECHANISMS
3 input: Control
Output:
center
Information information sent
sent along along efferent
pathway to
pathway to
Effector
Receptor (sensor)
2 Change
detected
by receptor
5 Response of
effector feeds
back to influence
Too much.
Stimulus: magnitude of
Imbalance
Produces stimulus and
change returns
in variable variable
homeostasis
Variable (In homeostasis)
Imbalance Too little.
Regulation Through Negative Feedback
corrective action
deviation return toward
from set pol set point
set point
(optimal conditions)
stress
corrective action
Stress or disturbance changes the internal environment.
Change is detected by receptors.
Corrective measures are activated.
Corrective measures counteract the change back toward set point.
3 input: Control
Output:
center
Information information sent
sent along along efferent
pathway to
pathway to
Effector
Receptor (sensor)
2 Change
detected
by receptor
5 Response of
effector feeds
back to influence
Too much.
Stimulus: magnitude of
Imbalance
Produces stimulus and
change returns
in variable variable
homeostasis
Variable (In homeostasis)
Imbalance Too little.
Regulation Through Negative Feedback
corrective action
deviation return toward
from set pol set point
set point
(optimal conditions)
stress
corrective action
Stress or disturbance changes the internal environment.
Change is detected by receptors.
Corrective measures are activated.
Corrective measures counteract the change back toward set point.
