Spine Anatomy

Question 1

trapezius and latissimus dorsi (superficial) - action on spine

Answer 1

pull scapula superiorly and medially / adduct and internally rotate the humerus

also teres major (same action as lat dors)

Question 2

splenius capitis / cervis (superficial) - action spine

Answer 2

spinal extension, lateral flexion, ipsilateral rotation

common target of botox for cervical dystonia

Question 3

spinal erectors - name/list?

Answer 3

deep muscles

iliocostalis, longissimus, spinalis, semispinalis, multifidus

action: spinal extension