What does intertransversarii mean?
The intertransversarii are small muscles that run between the transverse processes of the vertebrae.
What does the intertransversarii muscle do?
Lumbar intertransversarii functions are ipsilateral lateral flexion of the spine when contacting unilaterally, and stabilization of the lumbar spine when contracting bilaterally.
Where is the intertransversarii muscles located?
Intertransversarii are short back muscles that connect adjacent transverse processes of vertebrae. For the most part, they are located in the cervical and lumbar regions of the spine, although small muscular slips are present in the lower thoracic region as well.
What is the interspinales muscle?
Interspinales muscles are present as small, distinct bundles of fibers throughout the cervical region, beginning at the spinous processes of C2 and continuing to the spinous process of T1. The thoracic interspinales muscles are variable and are located only in the upper and lower few segments.
Where is the Spinalis muscle?
Spinalis muscle, any of the deep muscles of the back near the vertebral column that, as part of the erector spinae (sacrospinalis) muscle group, assist in extension (e.g., bending backward), lateral flexion (bending to the side), and rotation of the spine.
What is the origin of the Intertransversarii?
|Insertion||Transverse process above|
|Nerve||Ventral rami and Dorsal rami of spinal nerves|
|Actions||Lateral flexion of trunk|
What are the Intertransversarii muscles?
The Intertransversarii (Intertransversales) are small muscles placed between the transverse processes of the vertebrae.
Is Semispinalis the same as spinalis?
Sitting deep to semispinalis thoracis are the rotatores and levatores costarum, while superficially it is covered by the spinalis thoracis (erector spinae group). Just like all the spinotransverse muscles, semispinalis thoracis is innervated by the medial branches of the posterior rami of adjacent spinal nerves.
Where are the Interspinales?
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.