The iliocostals lumborum consists of several muscle straps that link the lumbar vertebrae and sacrum with the lower six or seven ribs. The muscle straps have a number of tendons, varying in different individuals, which insert in all angles in the lower six ribs. The muscle is innervated by dorsal branches of the lumbar and thoracic nerves and supplied by branches from the aorta. Research Iliocostalis Lumborum
In human anatomy, the lumbar vertebrae are the five vertebrae following the thoracic vertebrae. The
lumbar vertebrae feature no facets on the body or transverse processes (as the thoracic vertebrae have) and the bodies of the lumbar vertebrae are much larger than those of the cervical or thoracic vertebrae. The vertebral foramen is usually triangular, while the spinous process points backward and is rectangular or hatchet-shaped. The transverse processes of the
lumbar vertebrae (which also represent their rib elements) lack the foramina which characterize the cervical vertebrae. The large body of each lumbar vertebra bears the weight of the vertebrae above it (and the skull), while the arch serves to create a canal-like area along the spine to house and protect the spinal cord. Research Lumbar Vertebrae
The Probert Encyclopaedia was designed, edited and programed by
Matt and Leela Probert
Abbreviations
Research Iliocostalis Lumborum
