Sibson’s fascia, or the suprapleural membrane, is a strong fascial layer above the superior thoracic aperture on both body sides. It acts as a protective structure for the apices of the lungs and resists intrathoracic pressure during respiration.
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| File Name | Sibsons-Fascia.pptx |
| File Size | 1.24 MB |
| Number of Slides | 9 |
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Sibsons Fascia PPT Summary
- Sibson’s fascia is positioned on the thoracic inlet and is triangular, attached from the 7th cervical vertebra to the 1st rib and costal cartilage.
- It extends from the transverse process of the seventh cervical vertebra and is firmly anchored to the first rib.
- The fascia’s superior surface is associated with subclavian vessels, while its inferior surface relates to the cervical pleura covering the lung apex.
- It stabilizes the thoracic inlet, protects the cervical pleura, and prevents excessive neck movement during respiration by resisting changes in pressure.
- Sibson’s fascia may include attachments to this muscle, which occasionally reinforces the posterior portion of the membrane.
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