| A | B |
|---|
| Left ventricle | A lower chamber of the heart that pumps blood to the body |
| Right ventricle | Lower chamber of the heart that pumps blood to the lungs |
| Right atrium | Upper chamber of the heart that receives blood from the body |
| Left atrium | Upper chamber of the heart that receives blood from the lungs |
| Aorta | Largest artery carrying oxygenated blood to the body |
| Vena cava | Largest vein carrying deoxygenated blood to the heart |
| Pulmonary artery | Carries deoxygenated blood to the lungs |
| Pulmonary vein | Carries oxygenated blood to the heart |
| Cardiac artery | Supplies the heart with oxygen |
| Pulmonary circulation | Movement of blood from the heart to the lung and back to the heart |
| Systemic circulation | Movement of blood from the heart to the body and back to the heart |
| Arteries | Muscular blood vessels carrying blood to the body |
| Veins | Blood vessels with valves carrying blood to the heart |
| Capillaries | Minute blood vessels in the muscles |
| Blood | Liquid inside blood vessels made of plasma and blood cells |
| Red blood cells | Produced in the bone marrow of long bones |
| White blood cells | Are part of the body's defence system |
| Platelets | Dead, red blood cells that help in the clotting process |
| Plasma | The clear liquid of the blood |
| Haemoglobin | Part of the red blood cell that carries oxygen |
