![]() ![]() Intermediate layer: erector spinae (iliocostalis, longissimus, spinalis)ĭeep layer: transversospinales (semispinalis, multifidus, rotatores) Superficial layer: splenius (splenius Capitis, splenius Cervices, latissimus dorsi, trapezius, levator scapulae, and the rhomboid minor and rhomboid major) Moreover, these muscles help with the movements of the vertebral column and also help to maintain posture. These muscles help to stabilize the vertebral column and also have a role in proprioception and balance. The deep muscles of the back include the semispinalis, multifidus, and rotatores. They play an important role in the movement of the thoracic cage and flexion of the upper vertebral column and head. ![]() Their attachments subdivide these muscles, and they all have a commonest tendinous origin. They contain the longissimus, iliocostalis, and Spinalis muscles. The intermediate muscles are the erector Spinae. Within this group of back muscles, you will find the latissimus dorsi, the trapezius, levator scapulae, and the rhomboids. The superficial back muscles are the muscles found just below the skin. The muscles of the Back are divided into three-layer – The superficial layer, the intermediate layer, and the Deepest layer the muscles.
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