Suboccipital Triangle

Question 0

Muscles of the Suboccipital Triangle

Answer 0

Rectus Capitis Posterior Major
Rectus Capitis Posterior Minor
Oliquus Capitis Inferior
Oliquus Capitis Superior

Question 1

Suboccipital Triangle lies deep to what

Answer 1

Trapezius and Semispinalis Capitis

Question 2

Contents of Suboccipital Triangle

Answer 2

Vertebral Artery

Suboccipital Nerve- C1

Question 3

Roof of Suboccipital Triangle

Answer 3

Semispinalis Capitis

Question 4

Floor of Suboccipital Triangle

Answer 4

Posterior Atlanto-occipital membrane

Posterior arch of C1

Question 5

Boundaries of Suboccipital Triangle

Answer 5

Rectus Capitis Posterior Major- Superomedially
Obliquus Capitis Superior- Superolaterally
Obliquus Capitis Inferior- Inferolaterally

Question 6

Innervation of Suboccipital Triangle

Answer 6

Posterior Ramus of C1- Suboccipital Nerve

Question 7

Actions of the Suboccipital Triangle Muscles

Answer 7

Mainly postural muscles, but also act on the Head- directly or indirectly

Question 8

Rectus Capitis Posterior Major
Origin
Insertion

Answer 8

Origin- Spinous processes of C2

Insertion- Lateral part of Inferior Nuchal Line of the Occipital bone

Question 9

Rectus Capitis Posterior Minor
Origin
Insertion

Answer 9

Origin- Posterior Tubercle on the Posterior Arch of the C1 Vertebrae
Insertion- Medial third of the Inferior Nuchal Line

Question 10

Obliquus Capitis Inferior
Origin
Insertion

Answer 10

Origin- Spinous processes of C2

Insertion- Transverse processes of C1

Question 11

Obliquus Capitis Superior
Origin
Insertion

Answer 11

Origin- Transverse processes of C1

Insertion- Occipital bone between the Superior/Inferior Nuchal Line