Homeostasis

Definition

Homeostasis is the process by which living organisms maintain a stable internal environment despite changes in external conditions. It is crucial for the survival and proper functioning of cells and organs.

5 Must Know Facts For Your Next Test

1. Homeostasis involves various physiological processes such as temperature regulation, pH balance, and glucose levels.
2. The main components of homeostatic control are receptors, a control center, and effectors.
3. Negative feedback mechanisms are commonly used in homeostasis to counteract deviations from normal values.
4. Examples of homeostasis include thermoregulation in humans via sweating and shivering.
5. The endocrine system plays a key role in maintaining homeostasis through hormone regulation.

Review Questions

• What are the main components involved in homeostatic control?
• How does negative feedback contribute to homeostasis?
• Give an example of how the body maintains homeostasis.

Related terms

Thermoregulation: The process by which animals maintain an internal temperature within a tolerable range.

Negative Feedback: A mechanism that reverses a deviation from the set point to maintain stable conditions.

Endocrine System: A collection of glands that produce hormones to regulate metabolism, growth, and other functions related to homeostasis.