Upper Limb mm Flashcards
Trapezius
superficial back
O: occipital bone, spinous processes of cervical and thoracic vertebrae
I: acromion process, and spine of scapula, lateral clavicle
A: Superior fibers: elevates scapula
Middle fibers: retracts scapula
Inferior fibers: depress scapula
I: spinal accessory nerve
Serratus Anterior
Serratus Group O: outer surface of ribs I: medial border of clavicle A: protracts scapula, depresses scapula I: brachial plexus
Rhomboideus
Serratus Group O: spinous processes of vertebrae C7-T5 I: medial border of scapula A: Elevates scapula, retracts scapula I: brachial plexus
Levator Scapulae
Serratus Group O: transverse processes of vertebrae C1-C4 I: medial border of scapula A: elevates scapula I: brachial plexus
Latissimus Dorsi
Latissimus Group
O: iliac crest, thoracolumbar fascia, inferior 3 ribs, spinous processes of lumbar and thoracic vertebrae
I: intertubercular groove
A: medially rotates humerus, adducts humerus, extends humerus
I: brachial plexus
Teres Major
Latissimus Group O: lateral border of scapula I: crest of lesser tubercle A: medially rotates humerus, adducts humerus, extends humerus I: brachial plexus
Subscapularis
Latissimus Group O: ventral surface of scapula I: lesser tubercle A: medially rotates humerus, adducts humerus I: brachial plexus
Deltoideus
Deltoids Group
O: Acromion process, spine of scapula, lateral clavicle
I: deltoid tuberosity
A: Anterior fibers: flex humerus, medially rotate humerus
Middle fibers: abduct humerus
Posterior fibers: extend humerus, laterally rotate humerus
I: axillary nerve
Teres Minor
Deltoids Group O: lateral border of scapula I: posterior greater tubercle A: laterally rotates humerus, adducts humerus I: axillary nerve
Pectoralis Major
Pectoral Group
O: sacrum, costal cartilages, medial clavicle
I: crest of greater tubercle
A: adduct humerus, medially rotate humerus, flexes
I: brachial plexus
Pectoralis Minor
Pectoral Group O: ribs 3-5 I: coracoid process A: depress, protract scapula I: brachial plexus
Suprspinatus
Spinatus Group O: supraspinous fossa I: superior greater tubercle A: abducts humerus I: brachial plexus
Infraspinatus
Spinatus Group O: infraspinous fossa I: posterior greater tubercle A: Laterally rotates humerus I: brachial plexus
Triceps Brachii: long head
Triceps Group O: infraglenoid tubercle I: A: I:
