multifidus muscle

(redirected from Multifidus spinae muscle)

mul·tif·i·dus mus·cle

(mŭl-tif'i-dŭs mŭs'ĕl)
Origin, from the sacrum, sacroiliac ligament, mammillary processes of the lumbar vertebrae, transverse processes of thoracic vertebrae, and articular processes of last four cervical vertebrae; insertion, into the spinous processes of all the vertebrae up to and including the axis; action, rotates vertebral column; nerve supply, dorsal primary rami of spinal nerves.
Synonym(s): musculus multifidus lumborum [TA] , musculus multifidus [TA] .
References in periodicals archive ?
The posterior rami of spinal nerves T2 through T6 are anatomically unique in that they pass through the multifidus spinae muscle at a right-angle (90-degree) course en route to the epidermis, and therefore may be more susceptible to injury, which is why Massey and Pleet, as well as Pecina et al.