Key Stage 4
Meaning
Heart Valves are flaps of tissue in the heart which only allow blood through in one direction.
About Heart Valves
There are 4 heart valves:
- The Tricuspid Valve - Separating the right atrium and the right ventricle. Stopping blood from flowing from the right ventricle back into the right atrium.
- The Bicuspid Valve - Separating the left atrium and the left ventricle. Stopping blood from flowing from the left ventricle back into the left atrium.
- 2 Semilunar Valves - Stopping blood from flowing from the arteries back into the ventricles.
References
AQA
- Heart; valves, pages 30, 34, GCSE Combined Science; The Revision Guide, CGP, AQA
- Valves (heart), pages 30, 34, GCSE Combined Science; The Revision Guide, CGP, AQA
- Valves (heart), pages 34, 38, GCSE Biology; The Revision Guide, CGP, AQA
- Valves (of the heart), page 74, GCSE Combined Science Trilogy; Biology, CGP, AQA
- Valves (of the heart), page 80, GCSE Biology, CGP, AQA
- Valves (of the heart); replacement, page 105, GCSE Biology, CGP, AQA
- Valves (of the heart); replacement, page 99, GCSE Combined Science Trilogy; Biology, CGP, AQA
- Valves of the heart, page 53, GCSE Combined Science Trilogy 1, Hodder, AQA
- Valves of the heart; problems with, pages 57, 58, GCSE Combined Science Trilogy 1, Hodder, AQA