'58 



THE MUSCLES. 



FIG. 75. MUSCLES ON THE 

 LATERAL SURFACE OF 

 THE ARM. 



, M. supraspinatus; b, 

 part of insertion of M. rhom- 

 boideus; c, M. infraspinatus ; 

 d, M. teres major; e, M. spi- 

 nodeltoideus ; /", M. acromio- 

 deltoideus; g, caput longum 

 of M. triceps brachii ; h, caput 

 lateraleofM. triceps brachii; 

 ?',M. brachialis;/, M. biceps; 

 /', M. brachioradialis; /, M. 

 extensor carpi radialis lon- 

 gus; m, M. extensor com- 

 munis digitorum (/', tendon 

 of same); w, M. extensor la- 

 teralis digitorum; (' tendon 

 of same" 1 ; o, M. extensor 

 carpi ulnaris (o', tendon of 

 same) ; /, M. extensor indicis 

 proprius; q, fifth head of M. 

 flexor profundus digitorum; 

 r, m. flexor carpi ulnaris. I, 

 vertebral border of the scap- 

 ula; 2, spine of the scapula; 

 3, greater tuberosity of the 

 humerus; 4, olecranon; 5, 

 transverse ligament of the 

 wrist. 



