Overview of Muscles of the Shoulder and Upper Limb

Accessory (Ki) nerve

Innervates muscles that move the head and shoulders

Action

The movement performed by a muscle

Insertion

The attachment point of a muscle to a bone that moves

Scapula

Shoulder blade bone

Clavicle

Collarbone bone

Deltoid

Muscle that abducts the arm and rotates it

Rhombe

Muscle that adducts the scapula

Levator Scapulae

Muscle that elevates the scapula

Supraspinatus

Muscle that abducts the arm

Infraspinatus

Muscle that laterally rotates the arm

Subscapularis

Muscle that medially rotates the arm

Teres Major

Muscle that extends and adducts the arm

Triceps Brachii

Muscle that extends the forearm

Pectoralis Major

Muscle that flexes and adducts the arm

Pectoralis Minor

Muscle that depresses the scapula

Coracobrachialis

Muscle that flexes the arm

Brachioradialis

Muscle that flexes the forearm

Supinator

Muscle that supinates the hand

Pronator Teres

Muscle that pronates the hand

Pronator Quadratus

Muscle that pronates the hand

Biceps Brachii

Muscle that flexes the arm and forearm

Rotator Cuff Muscles

Group of muscles that stabilize the shoulder joint