biology

• Homeostasis: body’s attempt to
• maintain a constant internal environment; involves three parts or mechanisms:

·        

• ·        
• Receptor-
• detects change in the environment; sends message to control center

• ·        
• Control
• center- determines what needs to be done and sends message to effector

• ·        
• Effector
• – performs some function to return environment to balanced state

Negative Feedback – the action of the effector reverses the direction of change; stabilizing effect

• ·     Temperature regulation –
• body senses COLD, feedback causes shivering which causes the body to WARM up