Circulatory System
- Created by: NicolaK
- Created on: 25-09-16 08:25
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- Circulatory System
- Blood
- Heart
- has four chambers
- Left Atria
- receives blood from Pulmonary Vein
- Pulmonary vein brings oxygenated blood
- receives blood from Pulmonary Vein
- Right Ventricle
- force blood into Pulmonary Artery
- P.A. takes deoxygenated blood to the lungs
- force blood into Pulmonary Artery
- Levt Ventricle
- force blood into Aorta
- Aorta carries Oxygenated Blood around body
- force blood into Aorta
- Right Atria
- receives blood from Vena Cava
- Vena Cava brings deoxygenated blood
- receives blood from Vena Cava
- Left Atria
- has four chambers
- Blood Vessels
- Veins
- often have VALVES
- to prevent backflow of blood
- carry blood to the heart
- have thinner walls than arteries
- Large Lumen
- often have VALVES
- Capillaries
- Thin wall-only one cell thick
- have permeable walls
- so substance can diffuse in and out
- very small lumen
- carry blood rally close to every cell to exchange substances with them
- Arteries
- carry blood AWAY from heart
- Walls are thick, strong and elastic
- Veins
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