Muscles of the Shoulders and Arms
Action Muscle Origin Insertion
Muscles that move the Shoulder Girdle
Elevator Levator Scapulae cervical 1-4 scapula, medial
  Trapezius occipital thoracic scap., clavicle
Depressor Pectoralis Minor 3-5 ribs scap., coracoid
Abductor Serratus Anterior 1-9 ribs scapula, medial
Adductor Rhomboideus Major thoracic scapula, medial
Muscles that move the Upper Arm
Abductors Deltoid scapula, acromion humerus deltoid
Adductors Pectoralis Major ribs stern clav humerus greater
  Latissimus Dorsi thoracic lumbar humerus lesser
Flexors Pectoralis Major ribs stern clav humerus greater
Extensors Triceps (long) scapula ulna, olecranon
Muscles that move the Lower Arm
Flexors Biceps Brachii scapula radius, radial
Extensors Triceps (lat/med) humerus ulna, olecranon
Muscles that move the Wrist
Flexors Flexor Carpi Radialis humerus, medial metacarpal 2
  Flexor Carpi Ulnaris humerus ulna metacarpal 3-5
Extensors Extensor Carpi Radialis humerus, lateral metacarpal 2
  Extensor Carpi Ulnaris humerus ulna metacarpal 5
Muscles that move the Fingers
Flexors Flexor Digitorum Superficialis humerus radius phalanges 2
Extensors Extensor Digitorum humerus phalanges 2-5

 

David G. Ward, Ph.D.  Last modified by wardd 23 May, 2006