Sub-Occipital

Question 1

Rectus Capitis Posterior Minor

Answer 1

Origin… Posterior tubercle of atlas

Insertion… Median inferior nuchal line

Innervation… Suboccipital nerve

Blood Supply… Vertebral artery

Action… Extends head

Question 2

Rectus Capitis Posterior Major

Answer 2

Origin… Spinous process of axis

Insertion… Inferior nuchal line

Innervation… Suboccipital nerve

Blood Supply… Vertebral artery

Action… Extends head and rotates head to same side

Question 3

Obliquus Capitis Inferior

Answer 3

Origin… Spinous process of axis

Insertion… Transverse process of atlas

Innervation… Suboccipital nerve

Blood Supply… Vertebral artery

Action… Rotates atlas to turn face to same side

Question 4

Obliquus Capitis Superior

Answer 4

Origin… Transverse process of atlas

Insertion… Occipital bone

Innervation… Suboccipital nerve

Blood Supply… Vertebral artery

Action… Extends and bends head laterally