Blood supply
Dorsal branches
of posterior intercostal and lumbar arteries
.
What arteries supply blood to the Rotatores Longi muscles?
Blood supply
Dorsal branches
of posterior intercostal and lumbar arteries
.
What is the action of the Rotatores?
Action:
extension of the thoracic vertebrae, proprioceptive transducers that monitor the position and movements of the vertebral column
. Description: The Rotatores (Rotatores spinae) lie beneath the Multifidus and are found only in the thoracic region; they are eleven in number on either side.
What are the function of the Rotatores Thoracis Breves and Longi muscle?
| Origin Rotatores breves: Transverse processes of vertebrae T2-T12 Rotatores longi: Transverse processes of thoracic vertebrae | Actions Bilateral contraction: Extension of thoracic spine Unilateral contraction: Rotation of thoracic spine (contralateral) |
|---|
What differentiates the multifidus from the Rotatores?
Rotatores Muscles
They are shaped like a quadrilateral and attach on the transverse process of the vertebrae. But unlike the multifidus, whose other attachment site is the spinous process, the rotatores
originate at the transverse process and insert on the spinous process at one or two vertebral levels higher
.
How do I strengthen my multifidus muscle?
Slowly lift your knee from the floor
. Your thigh and hip should move straight up. This small amount of rotation is controlled by your multifidus. Hold this position for 2 to 3 seconds then slowly lower your knee back to the floor.
What is the deepest back muscle?
The deep back muscles are posterior to the erector spinae. They are short muscles associated with the spinous and transverse processes of the vertebrae. The three deep muscles of the back include the
semispinalis, multifidus, and rotatores
.
What does rotatores mean?
:
one that rotates or causes rotation
especially plural rotators or rotatores ˌrō-tə-ˈtȯr-ˌēz : a muscle that partially rotates a part on its axis.
Are rotatores deep to Multifidus?
Rotatores. Rotatores muscle lies
deep to the multifidus
and spans the whole length of the vertebral column, it is most developed in the thoracic region.
What is the action of Multifidus?
| Multifidus muscle | Actions Provides proprioceptive feedback and input due to high muscle spindle density; Bilateral backward extension, unilateral ipsilateral side-bending and contralateral rotation. | Identifiers | Latin Musculus multifidus spinae | TA98 A04.3.02.202 |
|---|
What is the origin of the Rotatores?
| Rotatores muscles | Origin Transverse process | Insertion Junction of transverse process and lamina, spinous process | Nerve Posterior rami of spinal nerves | Identifiers |
|---|
What is the origin of the spinalis?
The spinalis is the body’s most medial, or closest to the midline of the body, deep back muscle and originates at
the spinous processes (bony projections at the back of each vertebra) of the lower spinal vertebrae
.
What is the function of the longissimus?
The erector spinae muscles, including longissimus, are the most powerful extensors of the vertebral column. Hence their main actions include
spine extension and lateral flexion
. Longissimus capitis also rotates the head.
How do you train a deep back muscle?
- Lie on one side with the legs together.
- Keep the lower leg slightly bent.
- Draw the bellybutton into the spine to engage the core muscles.
- Raise the top leg about 18 inches, keeping it straight and extended.
- Hold the position for 2 seconds.
- Repeat 10 times.
Which bones are deep to the Ligamentum Nuchae?
Extends from the external occipital protuberance on the skull and median nuchal line, to the spinous process of C7. The deep fibers of the ligament attach to the external occipital crest, the posterior tubercle of
the atlas
, and to the medial surface of the bifid processes of the other cervical vertebrae.
