Homeostasis

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 a stimulus?

Back

A stimulus is any change in the environment that causes a response in an organism.

Front

What is the role of the nervous system in homeostasis?

Back

The nervous system controls and coordinates body activities through electric impulses/messages between the brain, spinal cord, and nerves.

Front

What is positive feedback?

Back

Positive feedback is a process that amplifies a response or increases the output in a system, such as the release of hormones during blood clotting.

Front

What is negative feedback?

Back

Negative feedback is a process that counteracts a change in a system, helping to maintain stability, such as regulating body temperature.

Front

What happens if homeostasis is not maintained?

Back

Failure to maintain homeostasis can lead to lack of internal balance, difficulty in metabolism, and eventual death.

Front

What is the purpose of a feedback loop?

Back

The purpose of a feedback loop is to ensure that conditions in the body remain stable.

Front

What is an example of a negative feedback loop in the human body?

Back

An example of a negative feedback loop is the regulation of blood sugar levels by insulin.

Front

What is an example of a positive feedback loop in the human body?

Back

An example of a positive feedback loop is the process of childbirth, where contractions lead to the release of oxytocin, increasing the intensity of contractions.

Front

What is the endocrine system's role in homeostasis?

Back

The endocrine system regulates long-term changes in the body through hormones, contributing to homeostasis.