Question:
Answer: Prime Mover
Action - pulls limb dorsally & posteriorly
Origin - Vertebrae
Insertion - Scapula
Antagonists - Pectoris Major
Synergists - Supraspinatus
Question:
Answer: Action - stabilizes scapula
Origin - vertebrae
Insertion - scapula
Antagonists - Serratus
Synergists - Trapezius
Question:
Answer: Action - Stabilizes, raises, retracts and rotates the scapula
Origin - occipital bone
Insertion - acromion and spine of the scapula
Antagonists - sternocleidomastoid
Synergists - Splenius capitus
Question:
Answer: Action - extends, rotates, and adducts humerus
Origin - scapula
Insertion - humerus
Antagonists - Deltoid; supraspinatus
Synergists - infraspinatus
Question:
Answer: Action - Rotates humerus laterally
Origin - Scapula
Insertion - humerus
Antagonists - pectoralis major
Synergists - deltoid