Upper Extremity Origin & Insertion Flashcards
Supraspinatus
O: Sup. scapula
I: Sup. facet of greater tuberosity of humerous
Infraspinatus
O: Inf. scapula
I: Middle facet of greater tuberosity of humerus
Teres Minor
O: Lat. border of scapula
I: Inf. facet of greater tuberosity of humerus
Subscapularis
O: Ant. scapula
I: Lesser tuberosity of humerous
Lattissimus Dorsi
O: Iliac crest, inf. 4 ribs, Spinouses T6 to Sacrum
I: Floor of intertubercular groove
Serratus Anterior
O: External surface of 1st 8-9 ribs
I: Ant. & med. surface of vertebral border of scapula
Rhomboid minor
O: SPs, C7-T1
I: Medial border of scapula
Rhomboid major
O: SPs T2-T5
I: Medial border of scapula
Deltoid
O: Around AC joint
I: Deltoid tuberosity of humerus
Levator Scapulae
O: TPs of C1-C4
I: Sup/med. border of scapula
Trapezius
O: Med. sup. nuchal line, EOP, ligamentum nuchae, SPs C7-T12
I: Lat. 1/3rd of clavicle, acromion, spine of scapula
Subclavius
O: 1st rib
I: Groove for subclavius on clavicle
Pec major
O: Clavicular head - ant. surface of med. 1/3rd clavicle
Sternal head - manubrium & body of sternum
Abdominal head - costal cartilages of ribs 2-6
I: Lat. lip of intertubercular groove
Pec Minor
O: 3-5th ribs
I: Coracoid process of scapula
Biceps
O: Long head - supraglenoid tubercle
Short head - coracoid process of scapula
I: Radial tuberosity
Coracobrachialis
O: Coracoid process (scapula)
I: Humerus
Brachialis
O: Humerus (lower ant. surface)
I: Coronoid/ulnar tuberosity
Triceps
O: Long head - Infraglenoid tubercle
Lat. head - pos./lat aspect of humerus, above radial groove
Med. head - post/med aspect of humerus, below radial groove
I: Olecranon of Ulna
Pronator Teres
O: Med. epicondyle/humerus, coronoid process of ulna
I: Middle of lat. surface of radius
Flexor carpii ulnaris
O: Humeral head - med. epicondyle of humerus
Ulnar head - olecranon & pos. border of ulna
I: Pisiform, hook of hamate, base of 5th MCP
Palmaris longus
O: Med. epicondyle/humerus
I: Palmar aponeurosis
Flexor carpii radialis
O: Med. epicondyle/humerus
I: Base of 2nd & 3rd MCP
Flexor digitorum supericialis
O: Humeroular head - Med. epicondyle, coronoid process of ulna, Ulnar collateral lig.
I: Palmar aspect of middle phalanx of digits 2-5
Flexor Pollicis Longus
O: Ant. surface of radius & interosseous membrane
I: Base of distal phalanx of thumb
Flexor digitorum profundus
O: Prox. ant. ulna & interosseous membrane
I: DIPs 2-5
Pronator Quadratus
O: Distal aspect of ant. ulna
I: Distal aspect of ant. radius
Supinator
O: Lat. epicondyle of humerus, lat. collateral lig. of elbow, annular lig., prox. pos. & lat. ulna
I: Prox. 1/3rd of radius
Anconeus
O: Lat. epicondyle of humerus
I: Olecranon of ulna
Extensor carpi radialis longus
O: Lat. supracondylar ridge of humerus
I: Pos. aspect base of 2nd MCP
Extensor carpi radialis brevis
O: Lat. epicondylar of humerus
I: Pos. aspect base of 3rd MCP
Extensor carpi ulnaris
O: Lat. epicondyle of humerus & olecranon
I: Lat. aspect of base of 5th MCP
Extensor digitorum communis
O: Lat. epicondyle of humerus
I: Pos. surfaces of base of middle & distal phalanges of digits 2-5
Extensor digiti minimi
O: Lat. epicondyle of humerus
I: Base of middle & distal phalanges of 5th digit
Extensor indicus
O: Ulna & interosseous membrane
I: Joins tendon of extensor digitorum to index finger
Extensor pollicis longus
O: Pos. midshaft ulna & interosseous membrane
I: Base of distal phalanx of thumb
Extensor pollicis brevis
O: Pos. surface of radius & interosseous membrane
I: Base of prox. phalanx of thumb
Abductor pollicis longus
O: Pos. surface of radius & ulna & interosseous membrane
I: Base of 1st MCP
Brachioradialis
O: Lat. supracondylar crest of humerus
I: Distal radius, prox. to styloid process
