Rotators of the Trunk Flashcards
(28 cards)
Multifidus Origin
Sacrum & transverse processes of all vertebrae
Multifidus Insertion
Spinous processes 2-4 vertebrae above
Multifidus Other movements
Lateral flexion & extension of the trunk
Multifidus Nerve
Sacral, thorasic and lumbar nerves
Rotatores Origin
Lumbar & cervical transverse processes
Rotatores Insertion
Lamina of the vertebrae above
Rotatores Other Movements
N/A
Rotatores Nerve
Dorsal primary rami of spinal nerves C1 — L5
Semispinalis - Capitis Origin
C4 — T7 transverse processes
Semispinalis - Capitis Insertion
Occipital
bone
Semispinalis - Capitis Other Movements
Hyperextension, extension of the trunk & lateral flexion
Semispinalis - Capitis Nerve
Posterior primary rami of adjacent spinal nerves
Semispinalis - Cervicis Origin
T1 T6
transverse processes
Semispinalis - Cervicis Insertion
C2 — C5 spinous processes
Semispinalis - Cervicis Other Movements
Extension of the trunk & lateral flexion
Semispinalis - Cervicis Nerve
Posterior primary rami of adjacent spinal nerves
Semispinalis - Thoracis origin
T6 — T10 transverse processes
Semispinalis - Thoracis Insertion
C6 — T4 spinous processes
Semispinalis - Thoracis Other Movements
Extension of the trunk & lateral flexion
Semispinalis - Thoracis Nerve
Posterior primary rami of adjacent spinal nerves
Internal Obliques Origin
Iliac crest & thoracolumbar fascia & inguinal ligament
Internal Obliques Insertion
Same as external: Abdominal aponeurosis & lower 3 ribs & iliac crest
Internal Obliques Other Movements
Flexion of the trunk, expiration & lateral flexion
Internal Obliques Nerve
Anterior primary rami of the lower 6 thoracic nerves T7 to T12 , also the L1 nerve
