Obliquus capitis inferior

• O (origin):

  • Spinous process of C2

  A) Obliquus capitis inferior

  
• I (insertions):

  • Transverse process of C1

  A) Obliquus capitis inferior

  
• A (actions):

  • Ipsilateral: Rotation
  • Bilateral: Extend head on neck

  A) Obliquus capitis inferior

  
• NS (nerve supply):

  • Dorsal Rami of C1

  A) Obliquus capitis inferior