Upper Body Muscles To Be Continued

Front 1

DELTOID (anterior division)

Back 1

O = lateral 1/3 clavicle
I= anterolateral surface of humerus

Front 2

DELTOID (middle division)

Back 2

O= superior surface of acromion process
I = mid humerus

Front 3

DELTOID (posterior division)

Back 3

O= inferior margin of spine of scapula
I = mid humerus

Front 4

CORACOBRACHIALIS

Back 4

O= coracoid process of scapula
I= middle of medial border of humerus

Front 5

PECTORALIS MAJOR

Back 5

O= sternum to R-7; cartilages of true ribs and aponeurosis of external abdominal oblique muscle
I= intertubercular sulcus of humerus

Front 6

SUBSCAPULARIS

Back 6

O= subscapular fossa
I= lesser tubercle of humerus and capsule of shoulder joint

Front 7

SUPRASPINATUS

Back 7

O= medial 2/3 of suprasinous fossa
I= greater tubercle of humerus and capsule of shoulder joint

Front 8

LATISSIMUS DORSI

Back 8

O= tp of T7-L5 and iliac crest via lumbar aponeurosis and lower 3-4 ribs, tip of scapula
I= intertubercular groove on anterior humerus

Front 9

INFRASPINATUS

Back 9

O= infraspinous fossa of scapula
I = posterior aspect of greater tubercle of humerus, and capsule of shoulder joint

Front 10

PECTORALIS MINOR

Back 10

O= anterior surface of the medial 1/2 of clavicle
I= lateral lip of intertubercular groove of humerus; crest of greater tubercle

Front 11

TERES MAJOR

Back 11

O= inferior angle of scapula on lower 1/3 of lateral border
I= medial lip of intertubercular groove of humerus; medial to latissimus dorsi tendon.

Front 12

TERES MINOR

Back 12

O= superior 2/3 of dorsal surface of axillary border of scapula
I= greater tubercle of humerus; shoulder joint capsule.

Front 13

TRICEPS BRACHII

Back 13

O= infraglenoid tubercle of scapula and superior 1/2 of posterior lateral surface of humerus.
I= olecranon process of ulna and deep fascia of forearm.

Front 14

PRONATOR TERES

Back 14

O= common flexor tendon from medial epicondyle of humerus and coronoid process of ulna
I= lateral surface of radius.

Front 15

SUPINATOR

Back 15

O= lateral epicondyle of humerus and the ulna.
I= upper radius

Front 16

BRACHIALIS

Back 16

O= lower 1/2 of humerus
I = tuberosity and coronoid process of the ulna

Front 17

BRACHIORADIALIS

Back 17

O= supracondylar ridge of humerus and lateral intermuscular septum
I = styloid process of the radius

Front 18

BICEPS BRACHII

Back 18

O= supraglenoid tubercle of scapula and coracoid process of scapula
I = proximal radius and bicipital aponeurosis

Front 19

OPPONENS DIGITI MINIMI

Back 19

O= hamate bone and flexor retinaculum
I = 5th metacarpal, ulnar side

Front 20

ADDUCTOR DIGITI MINIMI

Back 20

O= pisiform and tendon of the flexor carpi ulnaris
I = ulnar side of 5th proximal phalanx and ulnar border of the extensor expansion of same phalanx.

Front 21

FLEXOR DIGITI MINIMI BREVIS

Back 21

O= hamate bone and flexor retinaculum
I = ulnar side of the base of the proximal phalanx of the 5th finger.

Front 22

OPPONENS POLLICIS

Back 22

O= flexor retinaculum and turbercle of trapezium
I = metacarpal 1, radial side

Front 23

LUMBRICALS

Back 23

O= tendons of flexor digitorum profundus
I = around radial side of metacarpal 2-5, into extensor expansion.

Front 24

PALMAR INTEROSSEI

Back 24

O= sides of the metacarpals 1,2,4,5
I = extensor expansion of the respective digit with possible attachment to base of proximal phalanx.

Front 25

DORSAL INTEROSSEI

Back 25

O= each from the two metacarpal bones between which it inserts.
I= base of the proximal phalanges 2,3, and 4 and the extensor expansion.

Front 26

EXTENSOR DIGITORUM

Back 26

O= lateral epicondyle of humerus or common extensor tendon there
I= dorsal surfaces of four middle and distal phalanges via tendons.

Front 27

ABDUCTOR POLLICIS LONGUS

Back 27

O= middle of radius and lateral, dorsal surface of ulna
I= radial side of the base of teh 1st metacarpal

Front 28

ADDUCTOR POLLICIS

Back 28

O= capitate; bases of the 2nd and 3rd metacarpals; and the palmar surface of the 3rd metacarpal
I= base of the proximal phalanx of the thumb.

Front 29

ABDUCTOR POLLICIS BREVIS

Back 29

O= flexor retinaculum, scaphoid and trapezium
I= base of proximal phalanx of thumb

Front 30

FLEXOR POLLICIS BREVIS

Back 30

O= flexor retinaculum and trapezium; trapezoid and capitate
I= radial side of the base of the proximal phalanx of thumb

Front 31

EXTENSOR INDICIS

Back 31

O= distal ulna, dorsal surface
I= extensor digitorum tendon of index finger

Front 32

EXTENSOR POLLICIS BREVIS

Back 32

O= posterior radial shaft, distal region
I = proximal phalanx of the thumb

Front 33

EXTENSOR POLLICIS LONGUS

Back 33

O= posterior ulnar shaft, middle region
I= distal phalanx of the thumb

Front 34

EXTENSOR DIGITI MINIMI

Back 34

O=lateral epicondyle of humerus
I= middle and distal phalanges of 5th digit

Front 35

FLEXOR DIGITORUM PROFUNDUS

Back 35

O=anterior proximal 3/4 of ulnar shaft; interosseus membrane
I= distal phalanges of digits 2-5

Front 36

FLEXOR DIGITORUM SUPERFICIALIS

Back 36

O= medial epicondyle of humerus; proximal radial shaft (upper region); coronoid process of ulna
I= middle phalanges of digits 2-5

Front 37

FLEXOR POLLICIS LONGUS

Back 37

O=posterior ulnar shaft, middle region; interosseus membrane
I= metacarpal 1

Front 38

PALMARIS LONGUS

Back 38

O=medial epicondyle of humerus
I= palmar aponeurosis

Front 39

FLEXOR CARPI ULNARIS

Back 39

O=medial epicondyle of the humerus; medial olecranon; posterior proximal 2/3 of the ulna
I= 5th metacarpal; pisiform; hamate

Front 40

PRONATOR QUADRATUS

Back 40

O=anterior distal 1/4 of ulnar shaft
I= anteror distal 14 of the radial shaft

Front 41

FLEXOR CARPI RADIALIS

Back 41

O=medial epicondyle of humerus
I= bases of metacarpals 2 and 3

Front 42

EXTENSOR CARPI RADIALIS BREVIS

Back 42

O= lateral condyle of humerus
I= 3rd metacarpal

Front 43

EXTENSOR CARPI RADIALIS LONGUS

Back 43

O=lateral supracondylar ridge of the humerus
I= 2nd metacarpal

Front 44

EXTENSOR CARPI ULNARIS

Back 44

O=lateral epicondyle of the humerus
I= 5th metacarpal

Front 45

TRAPEZIUS (upper division)

Back 45

O=external occipital protuberance; superior nuchal lines; nuchal ligament;
I= lateral 1/3 of clavicle

Front 46

TRAPEZIUS (middle division)

Back 46

O=sp of C7-T12;
I= acromion process

Front 47

TRAPEZIUS (lower division)

Back 47

O=supraspinous ligament of C7-T-12
I= scapular spine

Front 48

LEVATOR SCAPULAE

Back 48

O= tp of C-1 - 4
I= medial border of scapula (superior angle to root of spine)

Front 49

RHOMBOID MINOR

Back 49

O=spinous processes of C4/7-T1
I= medial border of scapula , root of scapular spine

Front 50

RHOMBOID MAJOR

Back 50

O=spinous processes of T2-T5
I= inferior angle of scapula

Front 51

SERRATUS ANTERIOR

Back 51

O=ribs 1-9, lateral to costal cartilages
I= anterior medial border of scapula

Front 52

PECTORALIS MINOR

Back 52

O=ribs 2or3-4or5 (lateral to costal cartilage)
I= coracoid process of scapula

Front 53

SUBCLAVIUS

Back 53

O=1st rib at the junction of the costal cartilage
I= inferior surface of clavicle

Front 54

ANCONEUS

Back 54

O= posterior lateral epicondyle of humerus
I= lateral olecranon process and posterior surface of proximal portion of ulna