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Diaphragm

The two parts of the diaphragm  are the peripheral muscular and the central aponeurotic parts. There are three peripheral diaphragm parts.

 

Peripheral Diaphragm Parts:

  • Sternal (referring to the sternum)

  • Costal (referring to the ribs)

  • Lumbar (referring to the spinal column)

Muscle fibers from the peripheral muscular part converge on the central aponeurotic part, which is a thick plate of dense fibers. The sternal part is made up of two small muscular slips and attach to the back of the xiphoid process. The costal part is made up of wide muscular slips and come from the inferior six ribs internal surfaces and costal cartilages. They interdigitate with the slips of the transversus abdominis muscles. The lumbar part comes from the lumbar vertebrae by two pillars called the musculo tenstetoriu crura. These pillars attach on both sides of the aorta. There are openings in the diaphragm for the esophagus, the phrenic nerve (which is what controls the movements of the diaphragm producing the breathing), and the aorta and vena cava blood vessels, which lead to and from the heart.


The two parts of the diaphragm  are the peripheral muscular and the central aponeurotic parts. There are three peripheral diaphragm parts.

 

Peripheral Diaphragm Parts:

  • Sternal (referring to the sternum)

  • Costal (referring to the ribs)

  • Lumbar (referring to the spinal column)

Muscle fibers from the peripheral muscular part converge on the central aponeurotic part, which is a thick plate of dense fibers. The sternal part is made up of two small muscular slips and attach to the back of the xiphoid process. The costal part is made up of wide muscular slips and come from the inferior six ribs internal surfaces and costal cartilages. They interdigitate with the slips of the transversus abdominis muscles. The lumbar part comes from the lumbar vertebrae by two pillars called the musculo tenstetoriu crura. These pillars attach on both sides of the aorta. There are openings in the diaphragm for the esophagus, the phrenic nerve (which is what controls the movements of the diaphragm producing the breathing), and the aorta and vena cava blood vessels, which lead to and from the heart.

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