Unit 3.2 Deep Muscles of the Back (Erector Spinae Group)

Alliteration for erector spinae

I Love Standing! (lateral to medial)

innervation of erector spinae

dorsal rami of spinal nerves

erector spinae action

extend head and vertebral column (bilaterally), lateral flexion of head and vertebral column (unilaterally)

erector spinae group (ID and order)

iliocostalis, longissimus, spinalis

origin of erector spinae

sacrum, iliac crest, spinous processes of lumbar vertebrae

insertion of erector spinae

thoracic and cervical vertebrae; ribs; skull