The trapezius muscle (M. Trapezius) is flat, triangular in shape, with a wide base facing the posterior middle line. The muscle occupies the upper back and the back region of the neck.
The ileal-rib muscle (m. Iliocostalis) is the most lateral part of the muscle that straightens the spine. This muscle begins on the iliac crest, the inner surface of the superficial lumbar pectoral fascia.
The muscle, straightening the spine (m. Erector spinae) - the strongest of the autochthonous muscles of the back, extends all over the spine - from the sacrum to the base of the skull.
The spinal muscle (m. Spinalis) is the most medial of the three parts of the muscle that straightens the spine. The muscle is directly attached to the spinous processes of the thoracic and cervical vertebrae.
The transverse-awned muscle (m. Transversospinalis) is represented by a set of layered muscular bundles that run obliquely upward from the lateral in the medial direction from the transverse processes to the spinous processes of the vertebrae.
Particle muscles (mm. Multiridi) are muscle-tendon bundles that begin on the transverse processes of the underlying vertebrae and attach to the spinous processes of the overlying ones.
Muscles-rotators of the neck, chest and waist (mm. Rotatores cervicis, thoracis et lumborum) are located in the deepest layer of the musculature of the back, in the furrow between the spinous and transverse processes.
The muscles lifting the ribs (mm. Levatores costarum) are divided into short and long. Short muscles occupy the posterior segments of the intercostal spaces medially from the outer intercostal muscles.
The intermuscular muscles of the neck, chest and waist (mm., Interspinales cervicis, thoracis and lumborum) connect the spinous processes of the vertebrae with each other, beginning from the second cervical and below.
