You have heard about the thermostat-furnace system in a house as a non-biologic

Question

You have heard about the thermostat-furnace system in a house as a non-biologic example of a homeostatic mechanism. In the human body, structures called baroreceptors monitor the pressure in blood vessels to try and maintain it in a safe range. If blood pressure drops, the baroreceptors send signals that cause the heart to increase contractility (pump harder) in an effort to restore the pressure.

Which of the answers below correctly matches each component of the human body example with corresponding components in the house example?

baroreceptor – furnace; heart – thermostat; contractility – temperature

baroreceptor – thermostat; heart – furnace; blood pressure – temperature

baroreceptor – furnace; heart – thermostat; blood pressure – temperature

Explanation / Answer

Answer. Baroreceptors are the regulators here that will maintain the BP, thus, they are acting as thermostat.

Heart is the furnace that is being regulated by the thermostat, Baroreceptor.

Blood pressure is homologous to the temperature.

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