What is a key mechanism involved in internal feedback loops in the human body?

• A. Negative feedback
• B. Positive feedback
• C. Homeostatic imbalance
• D. Neural transmission

Answer: (A)

Verified step by step guidance

1. Understand the concept of feedback loops: Feedback loops are biological mechanisms whereby homeostasis is maintained. They involve a series of steps that lead to a response, which then influences the initial stimulus.
2. Differentiate between negative and positive feedback: Negative feedback loops work to reduce the effect of the initial stimulus, bringing the system back to its set point. Positive feedback loops, on the other hand, amplify the initial stimulus, moving the system further away from its set point.
3. Identify examples of negative feedback: Common examples include the regulation of body temperature, blood glucose levels, and blood pressure. These systems detect changes and initiate responses that counteract the change.
4. Consider the role of homeostatic imbalance: Homeostatic imbalance occurs when the body's feedback mechanisms fail to maintain homeostasis, leading to disease or dysfunction.
5. Evaluate the role of neural transmission: Neural transmission is the process by which nerve cells communicate with each other, often playing a role in feedback loops by transmitting signals that initiate or modulate responses.