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Week 7: Assignment -

Homeostasis

QuestionAnswer
Homeostasis The body's ability to maintain a stable internal environment despite external changes.
Negative feedback A control mechanism that reduces or reverses a change to restore balance (e.g., body temperature regulation).
Positive feedback A control mechanism that amplifies a change (e.g., oxytocin release during childbirth).
Example of negative feedback Blood glucose regulation via insulin and glucagon.
Role of hypothalamus in homeostasis Acts as the control center for temperature, thirst, hunger, and hormone regulation
What happens when homeostasis fails? Disease or dysfunction may occur, such as diabetes or dehydration
Sensor (receptor) Detects changes in the internal environment and sends signals to the control center.
Effector Carries out the response to restore homeostasis (e.g., sweat glands, muscles).
Set point The ideal value or range the body tries to maintain (e.g., 98.6°F for body temperature).
Example of homeostasis in action Shivering when cold to generate heat and restore body temperature.
Created by: user-1989594
 

 



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