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 does the rectus capitis posterior major do?
Rectus capitis posterior major muscle
| Origin | Spinous process of axis |
|---|---|
| Insertion | Lateral part of inferior nuchal line of occipital bone |
| Action | Bilateral contraction at the atlantooccipital joint: Head extension Unilateral contraction at the atlantoaxial joint: Head rotation (ipsilateral) |
Where is rectus capitis located?
The Rectus capitis anterior is a short, flat muscle, situated immediately behind the upper part of the Longus capitis. It is also known as Obliquus Capitis Superior.
What is the origin and insertion of the rectus capitis posterior major?
It is also known as the Greater Posterior Rectus Capitis, and comprises the posterosuperior boarder of the suboccipital triangle. [1] Origin Tip of the spinous process of the axis (C2). [2] Insertion Lateral aspect of the inferior nuchal line of the occiput,[2] as well as to the bone inferior to this line.
Where does the rectus capitis posterior minor insert?
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 |
How do you stretch posterior major rectus capitis?
Sit on the edge of a chair with the back straight and chin parallel to the floor. Tilt the head forward slowly until the stretch is felt in the back of the neck. Hold for five seconds. Lift chin and tilt head back until the stretch is felt in the upper neck.
Which is the origin of the rectus capitis posterior minor?
| 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 |
What Innervates rectus capitis posterior major?
Nerve to the Rectus Capitis Posterior Major Mucle: Suboccipital nerve or posterior (dorsal) primary ramus of C1.
Where does the rectus capitis posterior minor attach to?
What passes through the Suboccipital triangle?
The suboccipital triangle contains the vertebral artery, suboccipital nerve (C1), and suboccipital venous plexus.