Back and Neck ACTIONS Flashcards
Latissimus Dorsi
Extension, ADD, MR of humerus, downward rotation of scapula; raises body towards arms when climbing
Levator Scapulae
Elevation and downward rotation of scapula; bilaterally, extension of neck
Rhomboid Major
Retraction and downward rotation of scapula; fix scapula to thoracic wall
Rhomboid Minor
Retraction and downward rotation of scapula; fix scapula to thoracic wall
Serratus Posterior Superior
Proprioception (elevation of ribs); considered accessory m. of respiration
Serratus Posterior Inferior
Proprioception (depress ribs); considered accessory m. of respiration
Splenius Cervicis
Ipsilateral rotation and lateral flexion; bilaterally extension of neck
Splenius Capitis
Ipsilateral rotation and lateral flexion; bilaterally extension of head
Iliocostalis
Bilateral - extension of vertebral column
Unilateral - lateral flexion of vertebral column
Longissiumus
Bilateral - extension of vertebral column and head
Unilateral - lateral flexion of vertebral column
Spinalis
Bilateral - extension of vertebral column and head
Unilateral - lateral flexion of vertebral column
Semispinalis
Bilateral extension of all regions
Unilateral contralateral rotation of all regions
Multifidus
Stabilize vertebrae during local movements of vertebral column
Rotatores
Stabilize vertebrae and assist with extension and rotary movements; proprioception
Interspinalis
Aid in extension and rotation of vertebral column
Intertransversarii
Unilaterally - Aid in lateral flexion of vertebral column
Bilaterally - stabilize vertebral column
Levatores Costarum
Elevates ribs in inspiration, assist with lateral flexion of vertebral column
Rectus Capitis Posterior Major
Unilaterally - rotation to same side
Bilaterally - Extension of head
Rectus Capitis Posterior Minor
Unilaterally - rotation to same side
Bilaterally - Extension of head
Obliquus Capitis Inferior
Rotation of atlas and face to same side
Obliquus Capitis Superior
Extension of head and lateral flexion of head and neck
tilt head to right you are contraction the right OCS
Trapezius
Superior - elevation of scapula
Middle - retraction of scapula
Inferior - depression of scapula
Superior and inferior fibers together - upward rotation of scapula
