Outline the anatomy of the diaphragm (70% of marks).

Describe the function of the diaphragm in respiration (30% of marks).

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College Answer

The diaphragm is the principal muscle of respiration. Important and unique features of its 
anatomy include a central tendon that blends with the pericardium above and the fibrous 
capsule of the liver below, arcuate ligaments and crura that are important points of muscle 
insertion. There are also three major and three minor openings that allow passage of structures 

between the thoracic and abdominal cavities. Candidates who had studied anatomy of the 
diaphragm were clearly distinguishable from those who had not.
Candidates who followed a traditional template for anatomy answers scored better, providing 
answers that covered the breath of the topic.