1. HOMEOSTASIS Negative Feedback Positive Feedback RECEPTOR
The body senses an internal change and activates mechanisms that reverse, or negate, that change.
Negative Feedback
Example: The body adjusts to maintain a constant temperature.
The body senses an internal change and activates mechanisms that accelerate or increase that change.
Positive Feedback
Example: The body of a woman in labor adjusts to prepare for the birth.
HOMEOSTASIS
RECEPTOR
gathers information that something in the environment has changed
CONTROL CENTER
receives and processes the information then sends commands
EFFECTOR
Responds to the commands to either oppose or enhance the stimulus