The diagram shows a section through human skin - Leaving Cert Biology - Question c - 2018
Question c
The diagram shows a section through human skin.
(i) Name the parts labelled A, B, C.
(ii) A function of the skin is to maintain a constant body temperature.
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Worked Solution & Example Answer:The diagram shows a section through human skin - Leaving Cert Biology - Question c - 2018
Step 1
Name the parts labelled A, B, C.
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Answer
A = Hair
B = Blood vessels
C = Sweat gland
Step 2
A function of the skin is to maintain a constant body temperature. Give one role of each of the three parts A, B, C, in cooling the body on a warm day.
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Answer
Role of A (Hair): Hairs lie flat to reduce insulation, allowing heat to escape.
Role of B (Blood vessels): Blood vessels dilate to increase blood flow to the surface of the skin, promoting heat loss.
Role of C (Sweat gland): Sweat glands make sweat, which evaporates to cool the body.
Step 3
Give two other functions of the skin.
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Answer
Prevents water loss by acting as a barrier.
Acts as a sensory organ, allowing for the detection of touch, temperature, and pain.
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