By: Ashley Epperson

The Circulatory System

Main FunctionThe circulatory system helps and controls

the flow of blood around the body.

2 Interesting Facts1. Adults have 10.6 pints of blood.2. Blood is thicker than water.

2 Supporting Organs1. Heart2. Veins/Arteries

3 Relative Words1. Arteries- Tough, elastic tubes that carry

blood away from the heart.2. Aorta- Largest artery in the body.3. Venules- The smallest veins.

A Supporting Body System The Respiratory System. When the blood

reaches the lungs the carbon dioxide is removed. The fresh oxygen we've breathed in through the lungs takes it's place.

5 Terms to Learn 1. Inhale- Filling the lungs with fresh

oxygen.2. Arterioles- Thinner arteries.3. Heart- A muscular organ that pumps blood through the body.4. Lungs- Respiratory organs that work together with the heart to remove carbon dioxide and replace it with oxygen.5. Oxygen- The essential element for life.

Heart- A muscular organ that pumps blood throughout the body.Aorta- Largest artery in the body.Vein- Blood vessel that carries blood toward the heart.

Artery- Blood vessel that carries blood away from the heart.

Capillaries- The smallest blood vessel that connect arterioles and venules.