Study note
AnatomyAxilla

Cervicoaxillary canal: boundaries and transmitted structures

THE CONTEXT
The apex of the axilla forms an oblique passage called the cervicoaxillary canal.

Shape and direction

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The apex points upwards and medially towards the root of the neck.
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It is truncated rather than pointed and corresponds to a triangular interval.

Boundaries

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The anterior boundary is the posterior surface of the clavicle.
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The posterior boundary comprises the superior border of the scapula and the medial aspect of the coracoid process.
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The medial boundary is the outer border of the first rib.

Structures passing through

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The axillary artery, axillary vein and brachial plexus enter the axilla through this canal.
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