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pectoralis minor (muscle)


Definition: deep thoracoappendicular muscle of chest; origin, third to fifth ribs at the costochondral articulations; insertion, tip of coracoid process of scapula; action, draws down scapula or raises ribs; nerve supply, medial pectoral nerve.

Synonym(s): musculus pectoralis minorTA, smaller pectoral muscle

Further information

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© Copyright 2018 Wolters Kluwer. All Rights Reserved. Review date: Sep 19, 2016.