Question

Heat - What is the effect of heat on an injury?

Option 1: Reduces blood flow and swelling
Option 2: Has no impact on blood flow
Option 3: Increases blood flow and swelling
Option 4: Cools down the injured area

Answer 1

Heat increases blood flow to an injury, resulting in warmth and redness. It also promotes the healing process by bringing in immune cells. However, it can also cause swelling due to fluid leakage. Hence the correct answer is option 3

Step-by-step explanation:

Heat has the effect of increasing blood flow to an injury site, causing it to become warm and red. This is because heat causes vasodilation, which widens the blood vessels and allows for increased blood flow. The increased blood flow brings in immune cells and other substances that help in the healing process. However, heat can also lead to swelling at the injury site due to fluid leakage from the blood vessels.

Hence the correct answer is option 3