Recent research published in various medical and physiotherapy journals (including “SPINE”) has investigated the role of the deep stabilising muscles of the lumbar spine (Transversus Abdominis, Multifidus, the diaphragm and the Pelvic Floor) in low back pain. I lliocostalis, Love Longissimus and Spine Spinalis.The Stabilising Muscles of the Lumbar Spine spinalis capitis is an inconstant muscle fiber that runs from the cervical and upper thoracic and then inserts in the external occipital protuberance.įrom lateral to medial, the erector spinae muscles can be remembered using the mnemonic, I Love Spine.spinalis cervicis originates from the spinous process of T2-C6 and inserts in the spinous process of C4-C2.spinalis thoracis which originates from the spinous process of 元-T10 and inserts in the spinous process of T8-T2.The spinalis muscle is the smallest and most medial column.
Each of these consists of three parts, inferior to superior, as follows: The muscular fibers form a large fleshy mass that splits, in the upper lumbar region, into three columns, viz., a lateral (iliocostalis), an intermediate (longissimus), and a medial (spinalis). Some of its fibers are continuous with the fibers of origin of the gluteus maximus. The erector spinae is attached to the medial crest of the sacrum (a slightly raised feature of the sacrum closer towards the midline of the body as opposed to the "lateral" crest which is further away from the midline of the body), to the spinous processes of the lumbar, and the eleventh and twelfth thoracic vertebrae and the supraspinous ligament, to the back part of the inner lip of the iliac crests (the top border of the hips), and to the lateral crests of the sacrum, where it blends with the sacrotuberous and posterior sacroiliac ligaments. They gradually diminish in size as they ascend to be inserted into the vertebrae and ribs. Further up, it is subdivided into three columns. In the lumbar region, it is larger, and forms a thick fleshy mass. In the sacral region, it is narrow and pointed, and at its origin chiefly tendinous in structure. This large muscular and tendinous mass varies in size and structure at different parts of the vertebral column. The erector spinae is covered in the lumbar and thoracic regions by the thoracolumbar fascia, and in the cervical region by the nuchal ligament. These muscles lie on either side of the spinous processes of the vertebrae and extend throughout the lumbar, thoracic, and cervical regions. They are also known as the sacrospinalis group of muscles. The erector spinae is not just one muscle, but a group of muscles and tendons which run more or less the length of the spine on the left and the right, from the sacrum, or sacral region, and hips to the base of the skull. ( March 2016) ( Learn how and when to remove this template message) Please help improve it to make it understandable to non-experts, without removing the technical details. This section may be too technical for most readers to understand.
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