Question

which of the following examples listed below illustrates homeostasis maintained by a negative feedback? lack of pain in third - degree burns due to damage to sensory nerves in the dermis. release of sweat by eccrine glands in response to heat. excretion of salts within the sweat. an increase in sebum production in response to androgens (male sex hormones).

Explanation:

• Negative feedback is a mechanism that reverses a deviation from the set point. In the case of heat, the body needs to cool down.
• When the body is heated, eccrine glands release sweat. As sweat evaporates, it cools the body, reversing the heat deviation (negative feedback).
• Lack of pain in third - degree burns is due to nerve damage (not a feedback mechanism).
• Excretion of salts in sweat is part of osmoregulation but not a negative feedback for temperature.
• Increase in sebum production due to androgens is a hormonal response (not a negative feedback for homeostasis in the context of temperature or a general set - point reversal).

Answer:

Release of sweat by eccrine glands in response to heat.