Multifidus Flashcards

1
Q

origin

A
  • posterior surface of sacrum
  • posterior sacroiliac ligament
  • mammillary processes LV
  • TPs of TV
  • articular processes C4-C7
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2
Q

insertion

A

spines of vertebrae 2-4 segments superior to origin

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3
Q

innervation

A

dorsal rami all spinal nerves

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4
Q

blood supply

A
  • posterior intercostal arteries
  • posterior lumbar arteries
  • cervical branch of costocervical trunk
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5
Q

actions

A
  • extension, lateral flexion, & rotation of vertebral column
  • extension & lateral motions of pelvis
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