Unsourced material may be challenged and removed. It arises from eight fleshy digitations, each from the external surfaces and inferior borders of the fifth to twelfth ribs. These digitations lumbar strain exercises pdf arranged in an oblique line which runs inferiorly and anteriorly, with the upper digitations being attached close to the cartilages of the corresponding ribs, the lowest to the apex of the cartilage of the last rib, the intermediate ones to the ribs at some distance from their cartilages. From these attachments the fleshy fibers proceed in various directions.
The external oblique muscle is supplied by ventral branches of the lower six thoracoabdominal nerves and the subcostal nerve on each side. The cranial portion of the muscle is supplied by the lower intercostal arteries, whereas the caudal portion is supplied by a branches of either the deep circumflex iliac artery or the iliolumbar artery. One side of the obliques contracting can create lateral flexion. Posterior view of muscles connecting the upper extremity to the vertebral column.
Posterior part of abdominal external oblique muscle labeled. Transverse section through the middle of the first lumbar vertebra, showing the relations of the pancreas. The left side of the thorax. Surface anatomy of the front of the thorax and abdomen. Abdominal muscle strains in professional baseball: 1991-2010″.