12. Suboccipital Triangle Flashcards
Identify 1 - 2
- Rectus capitis posterior minor m.
2. Rectus capitis posterior major m.
Borders of the suboccipital triangle:
- Obliquus capitis superior
- Obliquus capitis inferior
- Rectus capitis posterior major
Identify 3
- Vertebral a.
Identify 4
- Obliquus capitis superior m.
Identify 5
- Suboccipital n.
Identify 6
- Obliquus capitis inferior m.
Identify 7 - 8
- Greater occipital n.
8. 3rd occipital n.
Borders of the suboccipital triangle: (REPEATED)
- Obliquus capitis superior
- Obliquus capitis inferior
- Rectus capitis posterior major
The roof of the suboccipital triangle is composed of ___
Dense connective tissue
The floor of the suboccipital triangle is composed of ____
- Posterior atlantooccipital membrane
* Posterior arch of the atlas
An artery you can find in Suboccipital Triangle
Vertebral artery
A vein you can find in Suboccipital Triangle
Vertebral vein
2 NERVES you can find in Suboccipital Triangle
Greater occipital
Suboccipital
Identify 4. O & I
Obliquus capitis superior
- O: transverse process of the atlas
- I: lateral third of the inferior nuchal line
Identify 4. Action?
Obliquus capitis superior
Action:
- Extends the head
- Lateral flexion of the head
Identify 1. O & I
- Rectus capitis posterior minor m.
O: the posterior arch of atlas
I: inferior nuchal line
Identify 1. Action
- Rectus capitis posterior minor m.
- > Extends head
Identify 2. O & I
- Rectus capitis posterior major m.
O: spinous process of the axis
I: the inferior nuchal line
Identify 2. Action
- Rectus capitis posterior major m.
Action:
- Extends head
- Rotates head to ipsilateral
Identify 6. O & I
- Obliquus capitis inferior m.
O: spinous process of the axis
I: transverse process of the atlas
Identify 6. Action
- Obliquus capitis inferior m.
Action: Rotates head to ipsilateral side
Innervation of Suboccipital Muscles?
Suboccipital nerve (dorsal branch of the cervical nerve [C1])
