Anstomy
| Origins | Lateral 1/3 of Clavicle (clavicular part), Acromion (acromial part), Spine of scapula (spinal part) Mnemonic: ‘Deltoid helps you carry SACS‘ |
| Insertion | Deltoid tuberosity of humerus |
| Innervation | Axillary nerve (C5, C6) |
| Blood supply | Deltoid and acromial branches of thoracoacromial artery, subscapular artery, anterior and posterior circumflex humeral arteries, deltoid branch of profunda brachii |
| Function | Clavicular part: flexion and internal rotation of the arm, Acromial part: abduction of the arm beyond the initial 15° Spinal part: extension and external rotation of the arm. |
Stretching
Bryson Ingram R.M.T. 