deep deep / suboccipital back muscles Flashcards
semispinales origin
TP C4-T12
semispinales insertion
- occipital bone
- SP in T/C regions
semispinales action
- extension of head/neck and vertebral column
- stabilize and control rotation of vertebral column
semispinales innervation
Dorsal rami
multifidus origin
- posterior sacrum
- multiple vertebrae
multifidus insertion
SP of more superior vertebrae
multifidus action
- extension of head/neck and vertebral column
- stabilize and control rotation of vertebral column
multifidus innervation
dorsal rami
rotatores origin
TP of one vertebra
rotatores insertion
SP of one vertebra
rotatores action
contralateral rotation
- stabilization of vertebral column
interspinales origin
untie consecutive SPs
interspinales insertion
untie consecutive SPs
interspinales action
extension and rotation of vertebral column
interspinales innervation
dorsal rami
intertransversarii origin
untie consecutive TPs
intertransversarii insertion
unite consecutive TPs
intertransversarii action
- extension of vertebral column
- ipsilateral flexion
intertransversarii innervation
ventral rami
rectus capitis posterior major origin
SP C2
rectus capitis posterior major insertion
nuchal line of occipital bone
rectus capitis posterior major action
bilateral action:
- extension at atlanto-occupital joint
unilateral action:
- ipsilateral rotation at joint
rectus capitis posterior major innervation
dorsal ramus of C1
rectus capitis posterior minor origin
posterior arch C1
