Orgins and Inserts

  1. Orgin
    -EOP (External occipital protuberance-Superior nuchal line-Nachal Ligament-Spinous process of C7-T12

    Insertion
    -Lateral third (1/3) of clavicle-Acromion process-Scapular Spine

    Action
    -Extends head and heck unilateral-Elevates scapula, upwardly rotates scapula middle fibers, Laterally flexes the neck-Depresses the scapula-Retracts Scapula middle fibers




    B) Trapezius
  2. Orgin
    -Transverse process of C1-C4

    Insertion
    -medial border of scapula from superior angle to root of the spine

    Action
    -Elevates scapula-downward rotation of scapula-lateral flexion of neck (Unilaterial)




    D) Levator Scapula
  3. Orgin
    Minor spinal process of C7-T1
    -Major spinal process of T2-T5

    Insertions
    Both medial borders of scapula from root of spine to inferior angle

    Action
    -Retraction and downward rotation of scapula

     Trapezius
    b) Levator Scapula
    c) Rhomboid Major & Minor 
    d) Serratus Anterior
    b) Levator Scapula
    c) Rhomboid Major & Minor 
Author
fidelforde
ID
165323
Card Set
Orgins and Inserts
Description
Muscles
Updated