Muscles that Position the Pectoral Girdle Flashcards
Levator Scapulae Origins
Vertebrae C1-C4
Levator Scapulae Insertion
Vertebral border of scapula
Levator Scapulae Action
Elevates scapula
Pectoralis Minor Origin
Ribs 3-5
Pectoralis Minor Insertion
Coracoid process of the scapula
Pectoralis Minor Action
Ribs fixed= Pulls scapula downward and forward
Scapula fixed= Assists in inspiration
Rhomboid Minor Origin
Vertebrae C7-T1
Rhomboid Minor Insertion
Medial border of the scapula
Rhomboid Minor Action
Adducts the scapula
Rhomboid Major Origin
Vertebrae T1 & T5
Rhomboid Major Insertion
Medial border of the scapula
Rhomboid Major Action
Adducts the scapula
Subclavius Origin
Superior border of rib 1
Subclavius Insertion
Inferior border of clavicle
Subclavius Action
Depresses the clavicle
Serratus Anterior Origin
Ribs 1-9
Serratus Anterior Insertion
Medial border of the scapula
Serratus Anterior Action
Scapula Fixator
Trapezius Origin
Nuchal ligament of occipital bone
Trapezius Insertion
Clavicle
Scapular Spine
Acromion of the scapula
Trapezius Action
Contraction of upper fibers elevates the scapula
Contraction of lower fibers depresses the scapula
Contractor of all fibers adducts the scapula
