5th Form - Homeostasis and Excretion: Explain 3 responses to Hyperthermia. (6)

Question

Explain 3 responses to Hyperthermia. (6)

MissScarrott · Accepted Answer

- Shivering - movement, respiration, release of heat energy
- Hairs stand on end - creates insulating layer of warm air
- Vasoconstriction - blood vessels near skin surface constrict reducing blood flow - reducing heat loss by radiation

MissScarrott · Answer

- Sweating - increased heat loss through evaporation of water from skin
- Hairs lie flat - removal of insulating layer
- Vasodilation - blood vessels near skin surface dilate, resulting in more blood flow at surface of skin - more heat loss via radiation

5th Form - Homeostasis and Excretion

Explain 3 responses to Hyperthermia. (6)

- Shivering - movement, respiration, release of heat energy - Hairs stand on end - creates insulating layer of warm air - Vasoconstriction - blood vessels near skin surface constrict reducing blood flow - reducing heat loss by radiation

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