Intrinsic Back Flashcards
Iliocostalis
Iliac crest - Ribs
Longissimus
Posterior sacrum - TPs of cervical and thoracic vertebrae
Spinalis
Spinous process of lumbar - Sps of cervical and thoracic
Erector spinae actions and innervation
Bilateral - extend head and vertebral column
Uni lateral - lateral flexion of vertebral column
Posterior Rami of spinal nerve
Semi-spinalis
(4-6 segments)
Tps of cervical and thoracic vertebrae - occipital bone and sps of cervical, thoracic
Multifidus
TPs of all vertebrae, posterior sacrum - sps(2-4 segments superior)
Rotatories
Tps all vertebrae - Sps all vertebrae 1 or 2 segments superior
Transversospinals action and innervation
Stabilize vertebral column and lateral flexion of vertebral column
Semi-spinales assists in extension of head
Posterior Rami of spinal nerves
Interspinales
SPs vertebrae - sps vertebrae 1 superior
Intertransversarii
Tps of vertebrae - tps vertebrae 1 superior
levatores costarum
Tps of c7-t11 - ribs
Segmental group actions and innervation
Stabilize vertebral column
Posterior rami of spinal nerves (Intertransversarii is posterior and anterior rami)