Define homeostasis.

Verified step by step guidance

1. Understand that homeostasis is a fundamental concept in Anatomy & Physiology referring to the body's ability to maintain a stable internal environment despite external changes.
2. Recognize that homeostasis involves various physiological processes that regulate factors such as temperature, pH, hydration, and electrolyte balance.
3. Note that homeostasis is maintained through feedback mechanisms, primarily negative feedback loops, which detect deviations from a set point and initiate responses to correct them.
4. Consider examples such as regulation of body temperature by sweating or shivering, and blood glucose levels controlled by insulin and glucagon.
5. Summarize by defining homeostasis as the dynamic process by which the body maintains internal stability to ensure optimal functioning of cells and organs.

Key Concepts

Homeostasis

Homeostasis is the process by which living organisms maintain a stable internal environment despite changes in external conditions. It involves regulating factors like temperature, pH, and glucose levels to keep bodily functions within optimal ranges.

Feedback Mechanisms

Feedback mechanisms are biological processes that help maintain homeostasis. Negative feedback reduces deviations from a set point, restoring balance, while positive feedback amplifies changes, usually to complete a specific process.

Set Point

The set point is the ideal value or range for a physiological parameter that the body strives to maintain. For example, human body temperature is typically regulated around 37°C, and deviations trigger responses to return to this set point.