University:
Acadia University
Course:
BIOL 2663 | Marine Biology
Academic year:

2024
Views:

29

Pages:

4
Author:

Nabila n.

Homeostasis: Maintaining Balance in Living Systems Homeostasis is the process of maintaining a stable internal environment in living organisms. It's essential for survival and ensures optimal functioning of cells, tissues, and organs. Definition and Importance of Homeostasis What is Homeostasis? Homeostasis refers to the ability of living organisms to maintain a stable internal environment despite external changes. This includes regulating temperature, fluid balance, and blood sugar levels. Why is it Important? Maintaining a stable internal environment is critical for optimal cell function, ensuring proper enzyme activity, nutrient transport, and waste removal. Any disruption can lead to disease. Key Components of Homeostatic Mechanisms Sensors Specialized receptors detect changes in the internal environment, such as temperature or blood sugar. Control Center The brain or other organs receive signals from sensors and initiate corrective actions. Effectors Muscles or glands respond to signals from the control center, carrying out adjustments to restore balance. Thermoregulation: Balancing Body Temperature 1 Temperature Fluctuation External factors like cold or heat can trigger changes in body temperature. 2 Sensory Detection Temperature sensors in the skin and hypothalamus detect changes in temperature. 3 Body Response The body responds by sweating to cool down or shivering to generate heat.