KINE 2031 Lecture Notes - Pronator Teres Muscle, Latissimus Dorsi Muscle, Pectoralis Major Muscle

• School: York University
• Department: Kinesiology & Health Science
• Course: KINE 2031
• Professor: Neil Smith

Document Summary

Pectoralis minor: abducts (protracts) the scapula: also superiorly rotates the scapula (abduction of the arms) Serratus anterior: abducts (protracts) the scapula: agonist in scapular protraction, also superiorly rotates the scapula, used in throwing a baseball, also called the boxer"s muscle as it"s used in throwing a punch. Levator scapulae: elevates the scapula: also used in inferiorly rotating scapula (adduction of the arms) Rhomboid (major & minor): elevates and adducts (retracts) the scapula: also used in inferiorly rotating scapula. Trapezius: does everything but inferiorly rotate the scapula because it inserts along the spine of the scapula. Pectoralis major: principle flexor of the arm. Latissimus dorsi: principle extensor of the arm (antagonist to the pectoralis major: both are involved in adduction (dumbbell flys) and medial rotation (belly drum) of the humerus. Coracobrachialis: synergistic with the pectoralis major in flexion of the arm.