Definitions

endothoracic fascia

Suprapleural membrane

The suprapleural membrane, eponymously known as Sibson's fascia, is a structure described in human anatomy. It refers to a thickening of connective tissue that covers the apex of each human lung. It is an extension of the endothoracic fascia that exists between the parietal pleura and the thoracic cage.

It attaches to the internal border of the first rib and the transverse processes of vertebra C7. It extends approximately an inch more superiorly than the superior thoracic aperture, because the lungs themselves extend higher than the top of the ribcage.

It is named for Francis Sibson.

Applied feature: Herniation of the cervical fascia may result due to injury to suprapleural membrane.

References

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