The diagram shows a flow chart of the reaction of a human body to an increase in temperature - HSC - SSCE Biology - Question 21 - 2019 - Paper 1
Question 21
The diagram shows a flow chart of the reaction of a human body to an increase in temperature.
Fill in the three blank steps on the flow chart.
Body temperature ris... show full transcript
Worked Solution & Example Answer:The diagram shows a flow chart of the reaction of a human body to an increase in temperature - HSC - SSCE Biology - Question 21 - 2019 - Paper 1
Step 1
Hypothalamus detects rise in body temperature
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Answer
This step involves the hypothalamus in the brain recognizing the increase in body temperature.
Step 2
Vasodilation
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Answer
This process refers to the widening of blood vessels to increase blood flow to the skin, helping to release heat.
Step 3
Evaporative cooling of skin
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This occurs as sweat evaporates from the skin's surface, which cools the body and helps reduce the elevated body temperature.
