Understanding Hair Growth and Body Temperature Regulation

The video explains how hair grows from the skin and its role in regulating body temperature. When cold, hair on arms and legs stands up to help retain body heat, preventing the body from getting too cold.

Where does hair originate from?

• From the muscles

• From the skin

• From the blood

• From the bones

What happens to the hair on your arms and legs when you feel cold?

• It stands up

• It grows longer

• It falls off

• It changes color

Why does hair stand up when you are cold?

• To signal danger

• To attract attention

• To help keep the body warm

• To make you look bigger

What is the primary function of hair standing up in cold conditions?

• To enhance skin sensitivity

• To increase hair growth

• To improve blood circulation

• To stop the body from getting too cold

How does the body prevent itself from getting too cold?

• By sweating

• By increasing heart rate

• By shivering

• By hair standing up