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Muscle of the Thorax
Muscle | Description | Attachments | Actions | |
---|---|---|---|---|
Internal obliques | Intermediate muscle of the abdominal wall | Iliac crest and lumbar fascia. Inserts to linea alba and inferior ribs | Compress abdomen and flex vertebrae.....lateral flexion and rotation (unilaterally) | |
External obliques | Superficial abdominal muscle running inferiorly and medially | Inferior 8 ribs, inserts to iliac crest and linea alba | Compress abdomen and flex vertebrae. Unilaterally later al flexion and rotation of | |
Transverse abdominis | Deep muscle, laying transversely around the abdominal wall | Iliac crest, lumbar fascia, inferior ribs 6-12, inserts to xiphoid process, linea Alva and pubis | Compress the abdomen | |
Rectus abdominis | Six pack muscles of anterior abdomen | Pubis and pubic symphysis, inserts to cartilage of ribs 5-7 and xiphoid process. | Flexes vertebrae and compresses abdomen. |