Uploaded February 2013 | Updated September 2026, 2 weeks ago

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3D anatomy tutorial on the muscles of the thoracic wall.

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The following structures are discussed in this tutorial:

Muscles which attach to the thoracic cage:

- Serratus anterior
- Serratus posterior (superior and inferior)

Muscles lying in the intercostal spaces and neurovascular structures:

- External, internal and innermost intercostal muscles
- Intercostal vein, artery and nerves

Endothoracic fascia

3 other muscles:
- Levatores costarum
- Subcostales
- Transversus thoracis

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