Deltoideus Contents Anatomy pictures Deltoideus - distance - lateral Deltoideus - distance - anterior Deltoideus - distance - posterior Referred pain pattern Lateral part of shoulder region radiating down to lateral aspect of upper arm Posterior part of shoulder radiating down into the posterior lateral aspect of upper arm Deltoideus pain pattern -anterior Deltoideus pain pattern - lateral Deltoid pain pattern - posterior Muscle type Phasic Weakens when overactivated Symptoms Problems with most movement of the shoulder Problems after impact trauma to shoulder Muscle attachment zones Videos Short version Detailed version Myofascial lines Superficial dorsal arm line Trapezius Deltoideus Lateral intermuscular septum Extensor group Extensor carpi radialis longus and brevis Extensor digitorum Extensor carpi ulnaris Extensor digiti minimi Anatomy Position Deep Origin Processus coracoideus scapula Insertion Along the medial aspect of the humerus (middle 1/3) Main Function Shoulder: Flexion Adduction Nerve Innervation Segmental C5-C7 Peripheral: Musculocutaneous Arterial Supply Brachial artery Anterior circumflex humeral artery
