Shoulder Girdle Muscles Flashcards
Levator Scapulae - Origin
O= Cervical Vertebrae 1-4 - Transverse Process
Levator Scapulae - Insertion
I= Scaupla - Superior part of Medial Border
Levator Scapulae - Action (1)
Scapular elevation with downward rotation
Pectoralis Minor - Origin
O= Ribs 3-5
Pectoralis Minor - Insertion
I= Scapula - Coracoid Process
Pectoralis Minor - Actions (2)
Scapular Protraction with anterior tilt
Asissts:
Scapular Depression
Serratus Anterior - Origin
O= Ribs 1-8 OR 1-9 - Outer surface and superior border
Serratus Anterior - Insertsion
I = Scapula - Costal (Anterior) surface of medial border
Serratus Anterior - Actions (2)
Scapular Protraction
Scapular upward rotation
Rhomboids - Origin
O= Thoracic Vertebrae 2-5 - Spinous Processes
Rhomboids - Insertion
I= Scapula - Medial Border
Rhomboids - Actions
Scapular Retraction
Scapular Elevation with downward rotation
Trapezius - Upper - Origin
O= Occipital Bone
Nuchal Ligament
Cervical Vertebrae C7 - Spinous Process
Trapezius - Upper - Insertion
I= Clavicle - Lateral 1/3
Trapezius - Upper - Actions
Scapular Elevation
Upward rotation of shoulder joint
Scapular retraction - With assistance from other parts of Traps