DAT Quantitative Reasoning Practice Test 2025 – Complete Exam Prep

Question: 1 / 400

What type of feedback mechanism does the skin primarily utilize for homeostasis?

Positive feedback

Negative feedback

The skin primarily utilizes a negative feedback mechanism for homeostasis. Negative feedback works to counteract changes in the internal environment, helping to maintain stability.

In the context of the skin, this mechanism is most evident in thermoregulation. For instance, when the body's temperature rises due to external heat or vigorous activity, the skin responds by increasing sweat production and dilating blood vessels. This helps cool the body down. Conversely, if the body temperature drops, the skin can reduce blood flow and minimize sweat production to retain heat.

This dynamic adjustment process exemplifies negative feedback, where the response diminishes the initial stimulus, thereby maintaining homeostasis. The other types of feedback mentioned are not primarily utilized by the skin for homeostatic regulation.

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Neutral feedback

Unidirectional feedback

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