The Circulatory System

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Presentation transcript:

The Circulatory System How our body transports materials.

Function of the Circulatory System To transport oxygen, nutrients, wastes, and other substances throughout the body.

3 Main Parts of the Circulatory System Blood Cells Blood Vessels The Heart

Blood Cells: Things that make up the blood. Red Blood Cells: carry Oxygen (no nucleus) White Blood Cells: fight infection Platelets: Clot Blood Plasma: Liquid component

Blood Vessels: Things that carry the blood. Arteries: carry blood away from the heart. Usually have Oxygen (not in pulmonary) Veins: carry blood toward the heart. Usually don’t have Oxygen (not in pulmonary) Valves prevent backflow Capillaries: materials are exchanged

Valves in Veins

Types of Circulation Pulmonary Circulation: Systemic Circulation: Pulmonary = Lungs Pulmonary Circulation: Right side of the Heart No Oxygen, a lot of Carbon Dioxide in Blood Takes blood from Heart to Lungs Systemic Circulation: Left side of the Heart A lot of Oxygen, no Carbon Dioxide in Blood Takes blood from Heart to rest of body

Pulmonary & Systemic

The Human Heart Red Blood Cell Cartoon Heart Song