SHOULDER, ARM. 



. AND HAND. 



The pronator radii teres muscle must first lie separated from the flexor carpi 

 radialis, by dividing the connective tissue with scissors and forceps. Next pull 

 the brachio-radialis outward, and expose the insertion of the pronator radii teres 

 into the middle third of tin: mitn surface of the radial shaft. Now trace the 



Biceps 

 Triceps 



Muscles of first layer ^ 



SrachloUi antlcui 



Flexor aublimlB dlgl'orum /_ 



Fleior carpi ulnarlc 



Flexor carpi radialis 

 Palmaris longus 



BracUo-radialis 



Extensor carpi radialis iongior 

 Supinator brevla 



Brachio-radialis 

 Flexor longus pollicis 



Extensor ossis metacarpi pollicia 

 Extensor brevis polllci* 



IMI;. 122. FRONT OF TIIK FOKKAKM: SKCOND LAYER OF MUSCLES. 



median nerve down, and see it pass between the two heads of the pronator radii 



teres, to reach the under surface of the flexor sublimis digitorum. (Fig. 119.) 



The ulnar artery's course (Fig. 117) to reach its groove as described on 



page 172 : Cut the origins at the internal condyle, of the pronator radii teres, 



