NAMEPectoralis Minor
Pectoralis Major Serratus Anterior External / Internal intercostals Rectus Abdominis External Oblique Internal Oblique Transverse Abdominis |
ORIGIN
Ribs 3-5
Clavicle / Sternum Ribs 1-8 Superior border of ribs . Pubis Ribs 5-12 Ribs5-12 Ribs 6-12 |
INSERTIONScapula
Humerus Scapula Inferior border of ribs Sternum Ilium Ilium Ilium |
ACTIONDraws scapula forward and downward as well as helps elevate ribs
Horizontal Adduction Protracts (abducts ) and rotates scapula Elevates and depresses ribs during inspiration and expiration Flexion of trunk Rotation of trunk and lateral flexion Rotation of trunk and lateral flexion Compresses abdomen |