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Chapter 40: Q40.2-2CC. (page 881)

If you were deciding where to put the thermostat in a house, what factors would govern your decision? How do these factors relate to the fact that many homeostatic control sensors in humans are located in the brain?

Short Answer

Expert verified

The factors that govern the decision of where the thermostat is placed in a house are right in the path of the output heating system that is on an interior wall. The thermostat should be placed preferably toward the center of a house, away from direct sunlight, windows or doors.

These factors relate to the fact that the body also has a central thermostat situated deep in the human brain that is separated from environmental stimulations.

Step by step solution

01

Thermostat

A thermostat is used to maintain temperature by detecting a change in temperature in the human body. The hypothalamus serves as the thermostat by maintaining the body temperature in mammals and also warming the body through shivering and cooling through perspiration.

02

Homeostatic control sensors

A sensor helps in the identification of changes in the internal or external surroundings, such as peripheral chemoreceptors that can detect pH changes in the blood.

The hypothalamus facilitates regulation of energy homeostasis, and the integrating center gathers information from the sensors to initiate response to regulate homeostasis.

03

Systematic inflammatory response

An inflammatory response involves fever that reflects a resetting of the thermostat to a higher normal range regarding infection or certain pathogens. A rise in body temperature increases phagocytosis and accelerates chemical reactions to enhance the repair of tissues.

The thermostat is to be placed towards the house center, away from sunlight, kitchen, vents, and hallways. The hypothalamus acts as a thermostat located behind the eyes and helps in regulating body temperature.

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Most popular questions from this chapter

Which of the following would increase the rate of heat exchange between an animal and its environment?

(A) feathers or fur.

(B) vasoconstriction.

(C) wind blowing across the body surface.

(D) countercurrent heat exchanger.

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(A) You know from its high and stable body temperature that it must be an endotherm.

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(C) You note that its environment has a high and stable temperature. Because its body temperature matches the environmental temperature, you conclude that it is an ectotherm.

(D) You measure the metabolic rate of the reptile, and because it is higher than that of a related species that live in temperate forests, you conclude that this reptile is an endotherm, and its relative is an ectotherm.

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