| Term | Definition |
|
Serratus dorsalis superior |
A thin sheet of muscle and tendon located on the dorsal part of the thorax and neck |
|
Serratus dorsalis inferior |
thin muscle, lies caudal to serratus dorsalis superior and is located over the dorsal part of the lumbar region. |
|
Spinalis dorsi |
Most medial of the deep muscles of the back. Lies in the mid-dorsal thoracic region |
|
Longissimus dorsi |
Thick muscles mass lying lateral to Spinalis dorsi. Fills the space between the spinous and transverse process of vertebrae in the thoracolumbar region. |
|
iliocostalis |
Lateralmost the the three longitudinal muscles of the back. Lies on the dorsal portion of the ribs and is covered by the serratus dorsalis muslces |
|
Multifidus spinae |
Best seen in sacral region adjacent to mid-dorsal line. In thoracic region, covered by other deep back muscles. Extends into the neck and continues as the semispinalis cervicis. |