front 1 External Intercostals | back 1 O: Inferior border of rib above |
front 2 Internal Intercostals | back 2 O: Superior border of rib below |
front 3 External Oblique | back 3 O: Inferior 8 ribs |
front 4 Internal Oblique | back 4 O: Iliac crest, inguinal ligament, and thoracolumbar fascia |
front 5 Transverse Abdominus | back 5 O: Iliac crest, inguinal ligament, lumbar fascia, and cartilages of
inferior six ribs |
front 6 Rectus Abdominus | back 6 O: Pubic crest and pubic symphysis |
front 7 Quadratus Lumborum | back 7 O: Iliolumbar ligament and iliac crest |
front 8 Diaphragm | back 8 O: Xiphoid process, cartilage of the lower 6 ribs, and lumbar
vertebrae |
front 9 Trapezius | back 9 O: Superior nuchal line of occipital bone, ligamentum nuchae,
andspines of C7 and T1-T12 Middle trap: Retract scapula. Lower trap: Depress scapula and upwardly rotate the scapula |
front 10 Latissimus Dorsi | back 10 O: Spines of T7-T12 and L1-L5, sacrum and ilium, inferior 4
ribs |
front 11 Rhomboid Major | back 11 O: Spines of T2-T5 |
front 12 Rhomboid Minor | back 12 O: Spines of C7-T1 |
front 13 Levator Scapulae | back 13 O: Transverse processes of C1-C4 |
front 14 Pectoralis Major | back 14 O: Clavicle, sternum, and costal cartilages of ribs 2-6 |
front 15 Pectoralis Minor | back 15 O: Ribs 2-5 |
front 16 Serratus Anterior | back 16 O: Superior 9 ribs |