- Vena cava pumps deoxygenated blood (Blood that has travelled around the body) into the right atrium
- Right atrium receives deoxygenated blood which goes into the right ventricle into the tricuspid valve. (Use of a valve: so that blood doesn’t flow backwards, only forwards)
- Right ventricle pumps deoxygenated blood into the lungs so that it can be oxygenated, helped by heart pumps (contractions)
- Pulmonary vein pumps oxygenated blood from lungs into left atrium
- Left atrium pumps deoxygenated blood into the left ventricle by the bicuspid valve
- Left ventricle pumps oxygenated blood around the body helped by a series of contractions
- Left ventricle has a thicker muscle wall than the right ventricle.
- Left ventricle pumps oxygenated blood around the body. Left ventricle, oxygenated blood – higher pressure than right
- Right ventricle only pumps deoxygenated blood to the lungs. Right ventricle, deoxygenated blood – lower pressure than the left
saturnine notes 