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Rotator Cuff Anatomy: Origin, Insertion & Action

⭐ Rotator Cuff Muscle Anatomy ⭐ 💪 Supraspinatus 💪 🦴 Origin: Supraspinous fossa of scapula 🦴 Insertion: Greater tubercle of the humerus (superior aspect) 🦴 Action: Abduction of arm & stabilisation of the humerus in glenohumeral joint 🦴 Innervation: Suprascapular nerve (C5, C6) 🦴 Blood supply: Suprascapular artery 💪 Infraspinatus 💪 🦴 Origin: Infraspinous fossa 🦴 Insertion: Greater tubercle of the humerus (posterior aspect) 🦴 Action: External rotation of the arm & stabilisation of the humerus in glenohumeral joint 🦴 Innervation: Suprascapular nerve (C5, C6) 🦴 Blood supply: Suprascapular and circumflex scapular arteries 💪 Teres minor 💪 🦴 Origin: Posterior surface of the lateral border of the scapula 🦴 Insertion: Greater tubercle of the humerus (inferior aspect) 🦴 Action: Lateral rotation of the humerus, stabilisation of the humerus in glenohumeral joint & can very weakly assist in shoulder adduction 🦴 Innervation: Axillary nerve (C5, C6) 🦴 Blood supply: Subscapular artery, circumflex scapular artery & posterior circumflex humeral artery 💪 Subscapularis 💪 🦴 Origin: Subscapular fossa 🦴 Insertion: Lesser tubercle of humerus 🦴 Action: Internal rotation of the shoulder, stabilisation of glenohumeral joint & can very weakly assist in shoulder adduction 🦴 Innervation: Upper and lower branches of the subscapular neve (C5, C6, C7) 🦴 Blood supply: Subscapular artery Chapters: 0:00 - Intro 0:13 - Location & overview of the rotator cuff muscles 1:49 - Origin & insertion of the rotator cuff muscles 4:00 - Actions of rotator cuff muscles 7:21 - Outro & actions summary ⭐ Want to learn more about the rotator cuff? Then check out the full article on the Bodyworks Prime website: https://bodyworksprime.com/rotator-cuff/ ⭐ If you would like some help memorising the rotator cuff muscle information then be sure to check out the free rotator cuff flashcards: Supraspinatus: https://bodyworksprime.com/supraspina... Infraspinatus: https://bodyworksprime.com/infraspina... Teres minor: https://bodyworksprime.com/teres-mino... Subscapularis: https://bodyworksprime.com/subscapula... #BodyworksPrime #Anatomy #RotatorCuff