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Diaphragm

Key Stage 3

This diagram shows the position of the diaphragm in the breathing system.

Meaning

The diaphragm is a wall of muscle separating the organs in the thorax from the organs in the abdomen.

About the Diaphragm

The diaphragm is essential to allow vertebrates to breath air.
When vertebrates inhale the diaphragm contracts and when they exhale the diaphragm relaxes.
Breathing.gif
An animation of the lungs inhaling and exhaling.

Key Stage 4

This diagram shows the position of the diaphragm in the breathing system.

Meaning

The diaphragm is a wall of muscle separating the organs in the thorax from the organs in the abdomen.

About the Diaphragm

The diaphragm is essential to allow vertebrates to breath air.
When vertebrates inhale the diaphragm contracts and when they exhale the diaphragm relaxes.
Breathing.gif
An animation of the lungs inhaling and exhaling.


References

AQA

Diaphragm (contraceptive), pages 217, 219, GCSE Biology; Student Book, Collins, AQA
Diaphragm (thoracic), page 118, GCSE Biology; Student Book, Collins, AQA
Diaphragm (thorax), page 33, GCSE Biology; The Revision Guide, CGP, AQA
Diaphragm (thorax), page 70, GCSE Combined Science Trilogy; Biology, CGP, AQA
Diaphragm (thorax), page 76, GCSE Biology, CGP, AQA
Diaphragms (contraceptive), page 65, GCSE Combined Science; The Revision Guide, CGP, AQA
Diaphragms (contraceptive), page 78, GCSE Biology; The Revision Guide, CGP, AQA
Diaphragms (contraceptives), page 194, GCSE Combined Science Trilogy; Biology, CGP, AQA
Diaphragms (contraceptives), page 230, GCSE Biology, CGP, AQA

Edexcel

Diaphragm, page 175, GCSE Physics, Pearson Edexcel

OCR

Diaphragms, pages 136-137, Gateway GCSE Physics, Oxford, OCR