ANATOMY

Detailed explanation-1: -Body temperature is controlled by the hypothalamus in the brain. If the hypothalamus detects that the body is too hot, the response is that the body begins to sweat to try and reduce the temperature back to the correct level.

Detailed explanation-2: -(b) Body temperature is regulated by negative feedback. In order to set the system in motion, a stimulus must drive a physiological parameter beyond its normal range (that is, beyond homeostasis). This stimulus is “heard” by a specific sensor.

Detailed explanation-3: -Thermoregulation is an example of negative feedback. The hypothalamus in the brain is the master switch that works as a thermostat to regulate the body’s core temperature (Figure 1).

Detailed explanation-4: -A good example of a negative feedback mechanism will be if the increase in temperature increases the amount of cloud cover. The increased cloud thickness or amount could reduce incoming solar radiation and limit warming.

Detailed explanation-5: -Also known as an inhibitory loop, a negative feedback loop allows the body to regulate itself. The process starts when there is an increase in output from a body system, which results in higher levels of certain proteins or hormones. This stops (inhibits or reverses) future production by the system.