Upper Extremities I and II: Muscle Locations Flashcards
Trapezius
O: ext. occipital protuberance, sup. nuchal line, nuchal ligament, C7-T12 spinous processes
I: scapula - lateral third of clavicle, acromion, spine
Latissimus dorsi
O: thoracolumbar fascia, lower thoracic spinous processes, iliac crest
I: intertubercular sulcus
Levator scapula
O: C1-C4 transverse processes
I: scapula - vertebral border superior to spine
Rhomboid minor
O: nuchal ligament, C7/T1 spinous processes
I: scapula - triangle area of spine
Rhomboid major
O: upper thoracic spinous processes
I: vertebral border of scapula
Deltoid
O: scapula - (clavicular) lateral third of clavicle, (acromial) acromion, (spinous) spine
I: deltoid tuberosity
Subscapularis
O: subscapular fossa
I: lesser tubercle
Supraspinatus
O: supraspinatus fossa
I: greater tubercle
Infraspinatus
O: infraspinatus fossa
I: greater tubercle
Teres minor
O: axillary border
I: greater tubercle
Teres major
O: inferior portion of axillary border
I: medial lip of intertubercular sulcus
Triceps brachii
O: (long) infraglenoid tubercle, (lateral) lateral to radial groove, (medial) medial to radial groove
I: olecranon process
Brachioradialis
O: lateral supraepicondylar ridge
I: lateral sfc of distal radius
Extensor carpi radialis longus
O: lateral supraepicondylar ridge
I: base of metacarpal II
Extensor carpi radialis brevis
O: common extensor origin
I: base of metacarpal III