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Pectorodorsal muscle

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pectorodorsal muscle --> pectorodorsalis muscle

(Science: anatomy) An anomalous muscle or tendinus slip that passes across the axilla from the pectoralis major to insert with the latissimus dorsi onto the humerus. Though to be a vestige of the panniculus carnosus muscle of lower mammals.

Synonym: axillary arch muscle, axillary arch, pectorodorsal muscle.