medial pectoral nerve (redirected from Medial anterior thoracic)

medial pectoral nerve,

a branch of the brachial plexus that, with the lateral pectoral nerve, supplies the pectoral muscles. It joins the lateral pectoral nerve to form a loop around the artery before ending deep in the pectoralis minor. The loop branches to supply the pectoralis minor and the pectoralis major. Compare lateral pectoral nerve.