Circulatory System

What is the substance that makes the blood red?

• Hemoglobin

• white blood cell

• platelets

The following are the materials that are being transported by the blood, except one?

•  hormones

• Nutrients

• gases

• digested food

This blood vessel transports blood away from the heart.

• veins

• valve

• arteries

• capillaries

This blood vessel transports blood towards the heart

• Valve

• arterioles

• capillaries

• veins

This is the smallest blood vessel found in the human body.

• capilliaries

• veins

• arterioles

• vessel

This structure help separate the chambers of the heart

• veins

• arteries

• arterioles

• valves

Encircle the atria and box the ventricles.

Trace the blood flow towards the lungs.

and then trace the blood flow towards the heart