Suboccipital Triangle

Question 0

Rectus Capitis Posterior Minor

Answer 0

Origin: posterior tubercle of posterior arch of C1

Insertion: medial third of the inferior nuchal line

Innervation: suboccipital nerve (posterior rami of C1)

Action: postural stability, extension of the head and C1 and rotation of the head and C1 on C2

Question 1

Rectus Capitis Posterior Major

Answer 1

Origin: spinous process of C2

Insertion: lateral part of the superior nuchal line

Innervation: suboccipital nerve (posterior rami of C1)

Action: postural stability, extension of the head and C1 and rotation of the head and C1 on C2

Question 2

Obliquus Capitis Inferior

Answer 2

Origin: spinous process of C2

Insertion: transverse process of C1

Innervation: suboccipital nerve (posterior rami of C1)

Action: postural stability, extension of the head and C1 and rotation of the head and C1 on C2

Question 3

Obliquus Capitis Superior

Answer 3

Origin: transverse process of C1

Insertion: occipital bone between inferior and superior nuchal lines

Innervation: suboccipital nerve (posterior rami of C1)

Action: postural stability, extension of the head and C1 and rotation of the head and C1 on C2