Major blood supply of pectoralis major muscles is
Thoracoacromial trunk
Lateral thoracic aery
Internal mammary aery perforating branches
Axillary aery
Major blood Supply of Pectoralis major muscles is thoracoacromial trunk. The intercostal perforators arising from the internal mammary aery provide a segmental blood supply BD CHAURASIA'S HUMAN ANATOMY.VOLUME 1. 6TH EDITION.PAGE NO 180. TABLE A1.5:aeries of upper limb
Thorax