11.20 Cool Down: Homeostasis & Feedback Mechanisms

Front

What is homeostasis?

Back

Homeostasis is the process by which living organisms maintain a stable internal environment despite changes in external conditions.

Front

What is the primary purpose of homeostasis in living organisms?

Back

To maintain constant internal conditions regardless of external changes.

Front

What happens when homeostasis is disrupted?

Back

The body may experience disease or dysfunction.

Front

What is a feedback mechanism?

Back

A feedback mechanism is a process that uses the conditions of one component to regulate the function of another component.

Front

What is a negative feedback loop?

Back

A negative feedback loop is a control mechanism that counteracts a change to return to a set point, helping to maintain homeostasis.

Front

What is a positive feedback loop?

Back

A positive feedback loop is a process that amplifies or enhances the initial stimulus, leading to an even greater change.

Front

Give an example of a negative feedback loop in the human body.

Back

Body shivering to increase temperature when cold.

Front

Give an example of a positive feedback loop in the human body.

Back

Release of oxytocin during childbirth.

Front

What role does insulin play in homeostasis?

Back

Insulin helps lower high blood sugar levels, maintaining glucose homeostasis.

Front

What can happen if the body's feedback mechanisms fail?

Back

The body systems may begin working independently, leading to dysfunction or disease.