Deep Back Flashcards
Iliocostalis lumborum
O: Iliac crest and thoracolumbar aponeurosis
I: Lower 6 ribs and transverse process of lumbar vertebrae 1-3 A: Extends lumbar region of the back N: Dorsal rami, lumbar nerves
Iliocostalis thoracis
O: Posterior surface of lower 6 ribs
I: Posterior surface of upper 6 ribs A: Extends thoracic region of spine N: Dorsal rami, lower thoracic nerves
Iliocostalis cervicis
O: Posterior surface of upper 6 ribs
I: Transverse process of 4th to 6th cervical vertebrae A: Extends cervical spine N: Dorsal rami, upper thoracic nerves
Longissimus thoracis
O: Transverse process of lumbar vertebrae and thoracolumbar fascia
I: Transverse process of all thoracic vertebrae and ribs lower 9 ribs
A: Extend the thoracic spine N: Dorsal rami, lumbar nerves, spinal
Longissimus cervicis
O: Transverse process of upper 5 thoracic vertebrae
I: Transverse process of 2nd to 6th cervical vertebrae A: Extend cervical region of spine N: Dorsal rami, thoracic nerves
Longissimus capitis
O: Transverse process of upper 5 thoracic vertebrae
I: Mastoid process A: Extend head, rotate head to same side N: Dorsal rami, upper thoracic nerves
Spinalis thoracis
O:Spinous processes of the upper lumbar and lower thoracic vertebrae
I: Spinous process of upper thoracic vertebrae A: Extend the thoracic spine N: Dorsal ramis of the upper lumbar and lower thoracic nerves
Semispinalis capitis
O: Transverse process of C7 - T6
I: Between superior and inferior nuchal lines of the occipital bone A: Extend head and vertebral column, rotate head to same side N: Dorsal rami, C7 - T6
Semispinalis cervicis
O: Transverse process T1 - T6
I: Spinous processes C2 - C6 A: Extends cervical spine, lateral flexion N: Dorsal rami, T1 - T6
Splenius capitis
O: Lower half of ligamentum nuchae and C7-T4 spinous processes
I: mastoid process, skull below lateral one-third of superior nuchal line A: Unilaterally: Rotate the head and neck to the same side; Laterally flex the head and neck Bilaterally: Extend the head and neck N: posterior rami middle cervical nerves, C7 - T4
Splenius cervicis
O: Spinous process of 3rd to 6th thoracic vertebrae
I: Transverse process of 1st to 3rd cervical vertebrae
A: Unilaterally: Rotate the head and neck to the same side; Laterally flex the head and neck
Bilaterally: Extend the head and neck
N: posterior rami lower cervical nerves T3 - T6
Multifidus (most prominent in lumbar region)
O: Sacrum, and transverse processes of lumbar through cervical vertebrae
I: Spinous process of vertebrae, spanning two to four vertebral segments A: Stabilizes spine during local movements, extension and contralateral trunk rotation Unilaterally: Rotate the vertebral column to the opposite side Bilaterally: Extend the vertebral column N: respective spinal nerves of each region
Rotatores
O:Transverse processes of lumbar through cervical vertebrae
I: Lamina and spinous process of spine above, spanning one or two segments A: Stabilize spine during movement Unilaterally: Rotate the vertebral column to the opposite side Bilaterally: Extend the vertebral column N: respective spinal nerves of each region
Interspinalis
O: Superior surface of spine, each vertebrae
I: Inferior surface of spine, each vertebrae A: Stabilization of spine, extend and rotate spine N: Dorsal rami of adjacent spinal nerve near O, spinal
Intertransversii
O: Transverse process all vertebrae
I: Transverse process vertebrae above A: Stabilization of vertebral column Unilaterally: Laterally flex the vertebral column to the same side Bilaterally: Extend the vertebral column N: Adjacent dorsal rami, spinal