Suboccipital And Deep Neck Muscles

Question 1

Origin: Spinous process of axis

Insertion: Lateral part of inferior nuchal line of occipital bone

Action: Head extension; Head rotation

Answer 1

Rectus capitis posterior major

Question 2

Origin: Posterior tubercle of atlas c1

Insertion: Medial part of inferior nuchal line of occipital bone.

Action: Head extension

Answer 2

Rectus capitis posterior minor

Question 3

Origin: Transverse process of atlas

Insertion: occipital bone, between superior and inferior nuchal lines.

Action: Bilateral: head ext
Unilateral: Head lateral flexion

Answer 3

Superior oblique of head

Question 4

Origin: spinous process of axis c2

Insertion: Transverse process of atlas

Action: Head ext; head rotation

Answer 4

Inferior oblique of head

Question 5

Suboccipital and deep neck muscles

Answer 5

Rectus capitis posterior minor

Superior oblique of head

Rectus capitis posterior major

Inferior oblique of head