Circulatory System

• Atria are thin-walled chambers that receive blood from veins
• Blood carries oxygen and nutrients to the body's cells and removes waste products.
• Arteries are blood vessels that carry oxygenated blood away from the heart to the rest of the body.
• The right atrium receives deoxygenated blood from the vena cava, which is then passed on to the right ventricle.
• The left atrium receives oxygenated blood from the pulmonary vein, which is then passed on to the left ventricle.
• The right side of the heart receives deoxygenated blood from the vena cavae and pumps it into the pulmonary artery, which leads to the lungs.
• Capillaries are tiny, delicate blood vessels where exchange between the bloodstream and tissues occurs.
• Veins return deoxygenated blood back to the heart.
• Pulmonary artery carries deoxygenated blood from the right ventricle to the lungs.
• Veins return blood back to the heart from the rest of the body.
• Valves prevent backflow of blood within the heart.
• Valves prevent backflow of blood within the heart chambers.
• LABEL THE HEART:

  A) Vena Cava

  B) Pulmonary Artery

  C) Aorta

  D) Right Atrium

  E) Right Ventricle

  F) Left Ventricle

  G) Left Atrium

  H) Pulmonary Vein