Simulation Quiz 38.1 Temperature Regulation System

In this simulation, which mechanism is used to regulate body temperature?

Negative feedback

Some horses have a condition known as anhidrosis, which leaves them unable to produce sweat. Which part of the graph on the Introduction page of the simulation would be affected by this condition, and why would this be a concern for the owners of these horses?

Evaporative heat loss would be affected. It is a concern because these horses cannot increase their evaporative heat loss when their body temperature increases above 38 *C.

Refer to the graph generated using the cold setting on the simulation. It represents the response of a human body to a change in temperature.

Mammals that hibernate can drop their set point to temperatures close to freezing. How would this graph differ for such a mammal as it enters a state of hibernation in early winter?

The temperature would continue to drop far below that shown on the graph before the metabolic response is triggered.

In the system described by the graph on the Introduction page of the simulation, what is the hypothalamus's set point for triggering increases in metabolic rate, and what is the hypothalamus's set point for triggering evaporative heat loss?

36.5 C ; 37.5 C