Question

Identify the function of blood from the given choices.

• A. Maintain skin colour
• B. Help in body balance
• C. Maintain body temperature
• D. Prevents body odour

Answer 1

The correct option is C

Maintain body temperature

Blood helps in maintaining stable body temperature. This is done both through blood plasma, which can absorb or give off heat, as well as through the speed at which the blood is flowing. When the blood vessels expand, the blood flows more slowly and this causes heat to be lost. When the environmental temperature is low the blood vessels can contract, so that as little heat as possible is lost.