What is rectus capitis posterior minor?
What is rectus capitis posterior minor?
Rectus capitis posterior minor muscle is a paired muscle located in the suboccipital compartment of the neck. It is part of the suboccipital muscle group which comprises four muscles in total, the other three being rectus capitis posterior major, obliquus capitis inferior and obliquus capitis superior.
What is the origin and insertion of the rectus capitis posterior major?
In this article, we will discuss the rectus capitis posterior major anatomy by covering its structure, innervation, insertion and origin….Rectus capitis posterior major muscle.
| Origin | Spinous process of axis |
|---|---|
| Insertion | Lateral part of inferior nuchal line of occipital bone |
Which is the insertion of the rectus capitis posterior major?
| Rectus capitis posterior major muscle | |
|---|---|
| Insertion | Inferior nuchal line of the occipital bone |
| Artery | Occipital Artery |
| Nerve | Dorsal ramus of C1 (suboccipital nerve), sub-occipital nerve |
| Actions | Ipsilateral rotation of head and extension |
What is the Myodural bridge?
The myodural bridge (MDB) is a small ligament connecting a pair of deep, upper-neck muscles called rectus capitus posterior minor (RCPMi) to tissue covering the spinal cord, called the dura mater.
Where does the rectus capitis posterior minor attach to?
occipital bone
| Rectus capitis posterior minor muscle | |
|---|---|
| Origin | Tubercle on the posterior arch of the atlas |
| Insertion | Medial part of the inferior nuchal line of the occipital bone and the surface between it and the foramen magnum |
| Nerve | Branch of the dorsal primary division of the suboccipital nerve |
Why do researchers believe that the rectus capitis posterior minor may be the cause of some headaches?
Atrophy of the rectus capitis posterior minor results in a decrease in the A-β fibers, thus greater pain impulses are transmitted through the central pain pathways, this, in turn, causes headache.
Where is rectus capitis located?
neck
Rectus capitis lateralis is a small, paired muscle that is found within the neck, deep to the prevertebral part of the deep cervical fascia. It is a part of the prevertebral muscle group along with splenius capitis, levator scapulae and middle and posterior scalene muscles.
What Innervates rectus capitis posterior major?
[1] Nerve Supply Suboccipital nerve or dorsal ramus of cervical spinal nerve (C1). [2] Blood Supply Vertebral artery and the deep descending branch of the occipital artery.
What causes dural tension?
The dura is present in the neck from the C1 to C3 cervical vertebrae. When these cervical vertebrae are unstable and wandering, they cause tension on the muscles, which are in fact trying to hold the vertebrae in place. This tension is translated to the dura via the myodural bridge.
Which is the insertion of the obliquus capitis superior?
Occipital bone
Obliquus capitis superior, or superior oblique, is a small paired muscle located deep in the upper cervical region, at the base of the occipital bone….Obliquus capitis superior muscle.
| Origin | Transverse process of atlas |
|---|---|
| Insertion | Occipital bone (between superior and inferior nuchal lines) |
What is the origin and insertion of obliquus capitis inferior?
Origin and insertion Originating from the lateral surface of the spinous process of the axis (second cervical vertebra), obliquus capitis inferior passes in a superolateral direction to insert onto the posterior aspect of the transverse process of the atlas (first cervical vertebra).
What muscle causes migraines?
At the base of the skull, there is a group of muscles called the suboccipital muscles. They can cause headache pain for many people.
What is the origin of rectus capitis anterior?
| Rectus capitis anterior muscle | |
|---|---|
| Origin | Atlas (C1) |
| Insertion | Basilar part of the occipital bone |
| Artery | Ascending artery |
| Nerve | Ventral primary rami of spinal nerves C1-2 |
What are dural tension signs?
When the myodural bridge pulls on the dura, people may suffer from an expanded list of symptoms.
- Occipital and back of the skull headaches.
- Problems of compression of the spinal cord are caused by an overstretched dura.
- As mentioned earlier, dizziness and balance problems can occur.
What does obliquus capitis superior do?
Obliquus capitis superior is a skeletal muscle of the neck and the head that is responsible for extension and ipsilateral flexion of the head by acting at the atlanto-occipital joint. The obliquus capitis superior is part of a group of muscles called the suboccipital muscles.
What does obliquus capitis inferior do?
The functions of obliquus capitis inferior are to facilitate the movements of the head and neck and maintain posture by supporting the atlantoaxial joint.
What is the Obliquus capitis?
Obliquus Capitis Inferior (also known as the Inferior Oblique) is a small muscle that runs posteriorly and inferomedially from C1 to C2. It is situated under the deep cervical vein and comprises the inferior boarder of the suboccipital triangle. It is the only suboccipital muscle that does not attach to the skull.
What kind of doctor treats cervicogenic headache?
Physical therapy and an ongoing exercise regimen often produce the best outcomes. Other providers that may need to be involved in management of cervicogenic headache include physical therapists, pain specialists (who can do the injections/blocks) and sometimes neurosurgeons or orthopedic surgeons.