Semispinalis cervicis

• R (direction):

  • Up and in

  A) semispinalis cervicis

  
• A (actions):

  • Unilateral action: contralateral rotation
  • Bilateral action: trunk extension

  A) semispinalis cervicis

  
• NS (nerve supply):

  • Adjacent posterior primary rami

  A) semispinalis cervicis

  
• O (origin):

  • Transverse process of T1 - T6

  A) semispinalis cervicis

  
• I (insertions):

  • Spinous process of C2 - C6

  A) semispinalis cervicis