THE MUSCLES. 95 



FIG. 50. MEDIAL OR INNER ASPECT OF THE MUSCLES OF THE FORELIMB. 



a, Supracondyloid ridge of humerus; ab, abductor pollicis; b, humerus; 

 c, humeral head of the flexor carpi ulnaris ; cp, ento-triceps ; d, in- 

 sertion of a tendon of flexor sublimis digitorum ; e, ulnar head of 

 flexor carpi ulnaris ; eci, extensor carpi radialis longior ; ecz, ex- 

 tensor carpi radialis brevior ; f, portion of the flexor sublimis 

 digitorum arising from the flexor profundus digitorum; fs, the 

 portion of the flexor sublimis arising from the palmaris longus; 

 fp, common tendon of the flexor profundus digitorum ; fix, flexor 

 profundus digitorum ; h, flexor profundus digitorum ; k, pronator 

 quadratus ; /, flexor carpi radialis ; o, short part of the ento-triceps ; 

 ol, olecranon process; ot, tendinous loops; pect, pectoralis cut off; 

 pi, origin of the palmaris longus which is reflected caudad; pt, 

 pronator teres ; r, ento-triceps ; ro, coracobrachialis ; s, split in the 

 tendon of the flexor sublimis revealed by cutting away the tendinous 

 loop; ss, supraspinatus ; si, supinator longus; tm, teres major; tb, 

 the head of the humerus ; x, a tendon of the flexor profundus digi- 

 torum whose portion between the two letters is cut out to display 

 the insertion of d. (" Ecto-triceps " in figure should be " medi- 

 triceps.") 



