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Homeostasis Video Lecture - NEET
FAQs on Homeostasis Video Lecture - NEET
| 1. What is homeostasis? |  |
Homeostasis is the body's ability to maintain a stable internal environment despite external changes. It involves various physiological processes that help regulate temperature, pH levels, blood pressure, and other vital functions within a narrow range.
| 2. How does homeostasis work in the human body? | |
Homeostasis in the human body is achieved through a series of feedback loops. These loops consist of sensors that detect changes in the internal environment, control centers that receive and process this information, and effectors that bring about the necessary response to restore balance and stability.
| 3. What are some examples of homeostasis in action? | |
Some examples of homeostasis in action include the regulation of body temperature, where sweating or shivering occurs to maintain a constant internal temperature. The maintenance of blood glucose levels through insulin and glucagon secretion is another example, as is the control of blood pressure through adjustments in heart rate and blood vessel constriction.
| 4. How does homeostatic imbalance affect the body? | |
Homeostatic imbalance can lead to various health issues. For example, if the body fails to maintain proper blood glucose levels, it can result in conditions like diabetes. Imbalances in electrolyte levels can disrupt nerve and muscle function. Additionally, disruptions in body temperature regulation can cause heat stroke or hypothermia.
| 5. Can external factors affect homeostasis? | |
Yes, external factors can influence homeostasis. For instance, extreme temperatures can challenge the body's ability to regulate internal temperature. Environmental stressors, such as exposure to pollutants or toxins, can also disrupt homeostatic mechanisms. Additionally, certain medications or diseases can interfere with the body's ability to maintain balance.
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Dec 27, 2024 Last updated |
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