What is the term for the body's tendency to maintain a stable internal environment?

What is the term for the body's tendency to maintain a stable internal environment?

• A. Instinct
• B. Hypothalamus
• C. Homeostasis
• D. Intrinsic Motivation

Answer: (C)

Maintaining a stable internal environment is homeostasis. This concept means the body keeps variables such as temperature, pH, glucose levels, and fluid balance within narrow ranges. Sensors detect any deviation, control centers coordinate an appropriate response, and effectors implement actions to bring things back toward set points. Most regulation relies on negative feedback: a change triggers actions that oppose it, restoring balance. For example, when body temperature rises, mechanisms like sweating and vasodilation help cool the body; if it falls, you might shiver and conserve heat. Blood glucose is tuned by insulin and glucagon to stay within a healthy range. The hypothalamus plays a key role in many homeostatic processes, but the term itself describes the regulation, not a single brain region. Instinct refers to innate behaviors, not the regulation of internal stability, and intrinsic motivation concerns the drive to act, not bodily regulation.

Maintaining a stable internal environment is homeostasis. This concept means the body keeps variables such as temperature, pH, glucose levels, and fluid balance within narrow ranges. Sensors detect any deviation, control centers coordinate an appropriate response, and effectors implement actions to bring things back toward set points. Most regulation relies on negative feedback: a change triggers actions that oppose it, restoring balance.

For example, when body temperature rises, mechanisms like sweating and vasodilation help cool the body; if it falls, you might shiver and conserve heat. Blood glucose is tuned by insulin and glucagon to stay within a healthy range. The hypothalamus plays a key role in many homeostatic processes, but the term itself describes the regulation, not a single brain region. Instinct refers to innate behaviors, not the regulation of internal stability, and intrinsic motivation concerns the drive to act, not bodily regulation.