Multifidus muscle

Common card · No. 276480

The multifidus (multifidus spinae; pl.: multifidi) muscle consists of 23 muscle fasciculi, which fill up the gutter on either side of the spinous processes of the vertebrae (the so-called spino-transverse groove), from the sacrum to the axis. While very thin, the multifidus muscle plays an important role in stabilizing the joints within the spine. The multifidus is one of the transversospinalis set. Located just superficially to the spine itself, the multifidus muscle spans three joint segments and works to stabilize these joints at each level. The stiffness and stability makes each vertebra work more effectively, and reduces the degeneration of the joint structures caused by friction from normal physical activity. These fasciculi arise: in the sacral region: from the back of the sacrum, as low as the fourth sacral foramen, from the aponeurosis of origin of the sacrospinalis, from the medial surface of the posterior superior iliac spine, and from the posterior sacroiliac ligaments. in...

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