Where are the interspinales muscles located?
The interspinales are short muscle fascicles, found in pairs between the spinous processes of the contiguous vertebrae, one on either side of the interspinal ligament.
What is the action of the interspinales?
Action: Extension, flexion and rotation of vertebral column. Description: In the cervical region, interspinales muscles are most distinct, and consist of six pairs, the first being situated between the axis and third vertebra, and the last between the seventh cervical and the first thoracic.
What are the Intertransversarii muscles?
The intertransversarii muscles function to flex the spine laterally by approximating adjacent transverse processes. They also help to stabilize adjacent vertebrae during large spinal movements. The thoracic intertransversarii muscles are small and are usually only present in the lower thoracic region.
What is the meaning of Intertransversarii?
The Intertransversarii (Intertransversales) are small muscles placed between the transverse processes of the vertebrae.
What are spinal erectors?
The erector spinae muscles are a group of long muscles that originate near the sacrum and extend vertically up the length of the back. The erector spinae muscles lie on each side of the vertebral column and extend alongside the lumbar, thoracic, and cervical sections of the spine.
What Innervates the Interspinales and Intertransversarii?
Innervation. Like the other intrinsic muscles of the back, interspinales muscles are innervated by the posterior rami of the respective spinal nerves.
What muscles are in the Transversospinalis group?
Transversospinales muscle group is a deep group of back muscles that lies deep to the Erector Spinae. It consists of 3 major subgroups: semispinalis, multifidus and rotatores.
Where is the longus colli?
neck
The left and right longus colli muscles (see Fig. 4-6) are located along the anterior aspect of the cervical vertebral bodies. Each of these muscles consists of three parts: vertical, inferior oblique, and superior oblique. Together the three parts of this muscle flex the neck (Cagnie et al., 2010).
What is Intertransversarii anatomy?
Intertransversarii are small muscles of the back found between contiguous transverse processes of the cervical, lumbar, and some thoracic, vertebrae. They comprise the deepest layer of the deep (autochtone) back muscles, along with interspinales and levatores costarum.
What is the origin of the Intertransversarii?
| Intertransversarii | |
|---|---|
| Origin | Transverse process |
| Insertion | Transverse process above |
| Nerve | Ventral rami and Dorsal rami of spinal nerves |
| Actions | Lateral flexion of trunk |
What do spinal erectors do?
The erector spinae muscles lie on each side of the vertebral column and extend alongside the lumbar, thoracic, and cervical sections of the spine. The erector spinae muscles function to straighten the back and provide for side-to-side rotation. An injury or strain to these muscles may cause back spasms and pain.