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Questions and Answers
What does homeostasis refer to?
What does homeostasis refer to?
- The process of cell division
- The growth patterns of organisms
- The function of the respiratory system
- The ability to maintain a stable internal environment (correct)
Which of the following best describes a key aspect of homeostasis?
Which of the following best describes a key aspect of homeostasis?
- The process of nutrient absorption
- The ability to adapt only to internal changes
- Regularly changing environmental conditions
- The maintenance of equilibrium in bodily functions (correct)
Which system is most closely associated with the regulation of homeostasis?
Which system is most closely associated with the regulation of homeostasis?
- The circulatory system
- The immune system
- The musculoskeletal system
- The endocrine system (correct)
In which scenario would homeostasis be disrupted?
In which scenario would homeostasis be disrupted?
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What is a common mechanism through which homeostasis is maintained?
What is a common mechanism through which homeostasis is maintained?
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Study Notes
Homeostasis
- Refers to the maintenance of a stable internal environment within an organism despite external fluctuations.
- Achieved through a delicate balance of physiological processes to ensure optimal function.
Key Aspect of Homeostasis
- Dynamic Equilibrium: The body continuously adjusts and responds to internal and external changes to maintain a relatively stable internal environment.
Regulation of Homeostasis
- Nervous System: Plays a central role in regulating homeostasis by detecting changes in the internal environment, sending signals, and triggering appropriate responses.
Disruption of Homeostasis
- Dehydration: A decrease in bodily fluids would disrupt the balance of electrolytes and water in the body, impacting various physiological functions.
Mechanism of Homeostasis
- Negative Feedback Loop: A regulatory mechanism where a change in the internal environment triggers a response that counteracts the change, restoring balance to the system.
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