Review Deep Back Flashcards
nerves supply the epaxial division muscles
dorsal primary rami of spinal nerves
nerves supply the hypaxial division muscles
ventral primary rami of spinal nerve
“say hi on the front, but the back is saying eep!”
hypaxial is ventral
epaxial is dorsal
muscles derived from epaxial division
deep extensor muscles of back
muscles of hypaxial division
infrahyoid
flexors of vertebral column
quadratus lumborum
what are the only muscles of the body supplied by the dorsal primary rami of spinal nerve
intrinsic back muscles
chief extensor of the vertebral column
erector spinae group
where are interspinalis and intertransversaii muscles lacking?
thoracic region
what muscles form the suboccipital triangle
oblique capitis inferior
oblique capitis superior
recturs capitis posterior major
**NOT MINOR
what structures are found within the suboccipital triangle
- vertebral artery
- subocciptial n. (dorsal ramus of C1)
- greater occipital n. (dorsal ramus of C2)
what n. supplies the muscles of the suboccipital triangle
suboccipital n.
what is the only back muscle that doesn’t produce extension
intertransversarii
what muscles extend and rotate head to the same side?
splenius
erector spinae
what muscles extends and rotate head to opposite side
multifidus
rotatores
semispinalis
