Homeostasis and Regulation Systems

📋 Course Outline

1. Homeostasis mechanisms
2. Nervous and hormonal systems
3. Reflex actions
4. Blood glucose regulation
5. Reproductive hormones
6. Contraception methods
7. Fertility treatments
8. Genetic inheritance
9. Evolution and natural selection
10. Biodiversity and ecosystems

📖 1. Homeostasis mechanisms

🔑 Key Concepts & Definitions

• Homeostasis: The maintenance of a constant internal environment (such as temperature, water, and glucose levels) to ensure optimal conditions for enzyme activity and cell functions (source content).
• Control systems: Biological mechanisms that regulate internal conditions by detecting changes and initiating responses to restore balance (source content).
• Receptors: Cells that detect stimuli or changes in the environment, such as light, temperature, or pressure, and send signals to control centres (source content).
• Coordination centres: Structures such as the brain, spinal cord, and pancreas that receive and process information from receptors and coordinate appropriate responses (source content).
• Effectors: Muscles or glands that bring about responses to stimuli, restoring or maintaining the internal environment within normal limits (source content).
• Negative feedback: A mechanism where the response to a stimulus reduces or counteracts the original change, helping to maintain homeostasis (source content).

📝 Essential Points