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Thoracic wall

Body cavities

A transverse section of the thorax, showing the contents of the middle and the posterior mediastinum.

The thoracic wall (or chest wall) is the boundary of the thoracic cavity.

The bony portion is known as the thoracic cage. However, the wall also includes muscle, skin, and fascia.

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General structures	body of vertebra, vertebral arch (pedicle, lamina, vertebral notch), foramina (vertebral, intervertebral), processes (transverse, articular/zygapophysis, spinous), spinal canal

Cervical vertebrae	C1 (anterior arch, posterior arch, lateral mass), C2 (dens), C3, C4, C5, C6, C7 anterior tubercle, posterior tubercle, foramen transversarium

Thoracic vertebrae	T1, T2, T3, T4, T5, T6, T7, T8, T9, T10, T11, T12 costal facets (superior, inferior, transverse)

Lumbar vertebrae	accessory process, mammillary process, L5

Sacrum	pelvic surface (anterior sacral foramina), dorsal surface (posterior sacral foramina, median sacral crest, medial sacral crest, lateral sacral crest), lateral surface (sacral tuberosity), base, sacral hiatus · presacral space · sacral promontory · sacral canal · ala of sacrum · sacrovertebral angle

Coccyx

v • d • e Anatomy, respiratory system: thoracic cavity (TA A07, GA 11.1087)

Pleurae	parietal pleura (cervical, costal, mediastinal, diaphragmatic) · visceral pleura · pulmonary ligament · recesses (costomediastinal, costodiaphragmatic) · pleural cavity Suprapleural membrane

Mediastinum	Superior · Anterior · Middle · Posterior

respiratory system navs: anat nose,larynx/lower+thoracic cavity/physio/dev, noncongen/congen/tumors, symptoms+signs/eponymous, proc