The Circulatory System

The Circulatory System

The body's Transport System

The Parts

• The heart

• The blood vessels (arteries, capillaries, veins)

• The blood (plasma, red blood cells, white blood cells, platelets)

Functions

• circulate blood around the body

• transport water, oxygen and nutrients to cells and waste from cells

• help other body systems function

• help fight disease

• help maintain correct body temperature

More About Circulation

• Systemic Circulation carries blood from the left side of the heart to all the systems of the body and back to the heart.

• Pulmonary Circulation carries blood from the right side of the heart to the lungs and back to the heart.

• Blood leaves the heart through arteries, to be delivered to capillaries in the cells and continue through veins, back to the heart

Even More About Circulation

• Blood delivered to cells in systemic circulation is oxygenated and bright red in colour.

• Blood leaving systemic circulation is deoxygenated and dark red in colour.

• In pulmonary circulation, the blood delivered to the lungs is deoxygenated, but the blood leaving the lungs is oxygenated.

Learn more about The Circulatory System