Shoulder MMT Muscles Flashcards
Shoulder flexion, muscles involved
Anterior Deltoid, coracobrachialis, supraspinatus
OII supraspinatus
Origin:supraspinous fossa of scapula
Insertion: Greater Tubercle of Humerus
Innervation: suprascapular nerve
Muscles involved in shoulder abduction
Middle deltoid, supraspinatus
Muscles involved in shoulder extension
latissimus dorsi, teres major, posterior deltoid
OII of Posterior deltoid
Origin: spine of scapula
Insertion: Deltoid tuberosity of humerus
Innervation: Axillary Nerve
. Muscles involved in shoulder horizontal abduction
Posterior Deltoid
Muscles involved in shoulder horizontal adduction
Pectoralis Major
OII of Pectoralis Major
Origin: Medial half of clavicle, sternum, ribs 2-7
Insertion: intertubercular groove of humerus
Innervation: Medial and lateral pectoral nerve
Muscles involved with shoulder internal rotation
Subscapularis
Subscapularis OII
Origin: subscapular fossa
Insertion: lesser tubercle of humerus
Innervation: Upper and lower subscapular nerves
Muscles involved with shoulder external rotation
infraspinatus, teres minor
OII Teres minor
Origin: lateral border of scapula
Insertion: Greater tubercle of humerus
Innervation: Axillary nerve
Muscles involved in scapular abduction and upward rotation
Serratus anterior
OII Serratus anterior
Origin: Ribs 1-9
Insertion: Medial border of scapula
Innervation: Long thoracic nerve
Muscles involved in scapular elevation
Upper Trapezius
Upper trapezius OII
Origin: occipital bone, nuchal line, nuchal ligament, external nuchal protuberance
Insertion: lateral third of clavicle, acromion, and scapular spine
Innervation: Spinal accessory nerve
Muscles involved in scapular adduction
Middle Trapezius
Middle Trapezius OII
Origin: spinous processes of TI-T5
Insertion: Scapular spine
Innervation: Spinal accessory nerve
Muscles involved in scapular depression and adduction
Lower Trapezius
Lower Trapezius OII
Origin: spinous processes of T6 - T12
insertion: tubercles of scapular spine apex
Innervation: spinal accessory /cervical nerve
Muscles involved in scapular adduction & downward rotation
Rhomboids
Rhomboids OII
Origin: T2-T5 spinous processes
Insertion: medial border of Scapula
Innervation: Dorsal scapular nerve