Relier Pairs Upper Extremities MusclesVersion en ligne Match the principle muscles of upper extremities with their short descriptions. par Kristie Borgheiinck 1 Pectoralis Major 2 Brachioradialis 3 Biceps Brachii 4 Deltoid 5 Serratus anterior 6 Trapezius 7 Triceps Brachii 8 Teres major 9 Latissimus Dorsi 10 Pectoralis minor beneath major Extends forearm (posterior arm to ulna) Abducts the arm (covers shoulder joint) moves scapula forward; aids in raising arm (below axilla on side of chest to scapula) Extends & adducts arm behind back (middle to lower back) Raises and lowers shoulder and pulls it back; rotates scapula; extends head (upper back & neck) Flexes the elbow (connects humerus to radius) Flexes forearm and supinates hand (anterior arm to radius) Adducts and flexes the arm across chest; pulls shoulder forward and downward (upper chest anterior to humerus) extends the humerus and adducts and rotates the arm (connects scapula to humerus)