Deep muscles of the back. (Multifidus shaded in red.)
Sacrum, dorsal surface. (Multifidus attachment outlined in red.)
Details
Origin
Sacrum, erector spinae aponeurosis, PSIS, and iliac crest
Insertion
Spinous process
Nerve
Posterior branches
Actions
Provides proprioceptive feedback and input due to high muscle spindle density; Bilateral backward extension, unilateral ipsilateral side-bending and contralateral rotation.
Identifiers
Latin
musculus multifidus spinae
TA98
A04.3.02.202
TA2
2276
FMA
22827
Anatomical terms of muscle
[edit on Wikidata]
The multifidus (multifidus spinae; pl.: multifidi) muscle consists of a number of fleshy and tendinous fasciculi, which fill up the groove on either side of the spinous processes of the vertebrae, 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 transversospinales.
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 the lumbar region: from all the mamillary processes.
in the thoracic region: from all the transverse processes.
in the cervical region: from the articular processes of the lower four vertebrae.
Each fasciculus, passing obliquely upward and medially, is inserted into the whole length of the spinous process of one of the vertebræ above.
These fasciculi vary in length: the most superficial, the longest, pass from one vertebra to the third or fourth above; those next in order run from one vertebra to the second or third above; while the deepest connect two adjacent vertebrae.
The multifidus lies deep relative to the spinal erectors, transverse abdominis, abdominal internal oblique muscle and abdominal external oblique muscle.
The multifidus (multifidus spinae; pl.: multifidi) muscle consists of a number of fleshy and tendinous fasciculi, which fill up the groove on either side...
include: the three semispinalis muscles, the multifidusmuscle, and the rotatores muscles. The three semispinalis muscles, span 4-6 vertebral segments:...
muscle attaches to pecten pubis. The transversus abdominis muscle attaches to the pubic crest and pecten pubis via a conjoint tendon The multifidus muscle...
The rotatores muscles (rotatores spinae muscles) lie beneath the multifidus and are present in all spinal regions but are most prominent in the thoracic...
transverse abdominal muscle (TVA), also known as the transverse abdominis, transversalis muscle and transversus abdominis muscle, is a muscle layer of the anterior...
This is a table of skeletal muscles of the human anatomy, with muscle counts and other information. Skeletal muscle maps Anterior view Posterior view...
a thick band of fascia composing the tendon of the tensor fascia latae muscle. It is located on the lateral aspect of the knee, extending from the outside...
sacral crest is a shallow sacral groove, which gives origin to the multifidusmuscle. The floor of the groove is formed by the united laminae of the corresponding...
processes of the vertebrae and end in the multifidusmuscle. The laterals supply the erector spinae muscles. The upper three give off cutaneous nerves...
2007). "Intrarater and interrater reliability of assessment of lumbar multifidusmuscle thickness using rehabilitative ultrasound imaging". The Journal of...
Saide M, Jull GA, Cooper DH (January 1994). "Evidence of lumbar multifidusmuscle wasting ipsilateral to symptoms in patients with acute/subacute low...
with the superior articular process. The multifidusmuscle attaches to the mammillary process and this muscle extends through the length of the vertebral...
aponeuroses are situated just on top of the epaxial muscles of the thorax, which are multifidus spinae and sacrospinalis. The palmar aponeuroses occur...
processes of the vertebrae and end in the multifidusmuscle. The outer branches supply the erector spinae muscles. The nerves give off branches to the skin...
(including the multifidus, semispinalis and rotatores), the splenius and suboccipital muscles are the only epaxial muscles. Hypaxial and epaxial muscles develop...
called facet joints limit and direct the motion of the spine. The multifidusmuscles run up and down along the back of the spine, and are important for...
5-6 thoracic vertebrae. Masseter: cheek muscle, moves the jaw open and closed and allows for chewing Multifidus cervicis: originates on last 4-5 cervical...
are unique in that they pursue a right-angle course through the multifidus spinae muscle, and this particular circumstance may predispose them to harm from...
spinalis Transversospinales – composed of semispinalis, multifidus and rotatores Segmental muscles – composed of levatores costarum, interspinales and intertransversarii...
as training of transverse abdomens and multifidus, training of diaphragm, and training of pelvic floor muscles. Core strength exercises that are performed...
co-recruitment between muscle synergies. Specifically, local muscles that attach directly to the spine are affected. The lumbar multifidus and transversus abdominis...
"oblique" (multifidus and semispinalis) component, both of which stretch between vertebral processes; the former acts similar to the muscles of the lateral...
three nerves are small, and end in the Semispinalis cervicis and capitis, Multifidus, and Interspinales. The lateral branches of the lower five nerves supply...
physiology, segmental stabilizers are the muscles which provide support across joints, as in the multifidus across spinal vertebrae. Segmental stabilizers...
the upper six thoracic nerves run between the semispinalis dorsi and multifidus, which they supply. They then pierce the rhomboidei and trapezius, and...
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