fiv 



MUSCLES OF THE FORE-ARM. 



85 



Flexor carpi radialis. — Origin, from the internal condyle of the 

 humerus, the brachial fascia, and the upper part of the ulna. Inser- 

 tion, into the base of the metacarpal bone of the index finger. 

 Use ; it flexes the hand at the wrist. (Fig. 65.) 



Palmaris longus.^ — Is sometimes deficient. Origin, from the 

 internal condyle. Insertion, into the annular ligament and palmar 

 aponeurosis. JJse ; it bends the hand. 



Fig. 65. Fig. ^e>. 



Flexor carpi ulnaris.^ — Orighi, from the internal condyle, and 

 from the ridge at the inner side of the ulna. Insertion, into the 

 pisiform bone and sometimes into the base of the metacarpal bone 

 of the little finger. Use ; it flexes the hand. 



Flexor sublimus digitorumperforatus? — Origin, from the internal 

 condyle of the humerus, the coronoid process of the ulna, and the tu- 

 bercle of the radius. Insertion, by four split tendons into the second 

 phalanges of the fingers. Use ; it bends the hand and fingers. 



Flexor profundus digitorum perforans.'* (Fig. 66.) — Origin, 

 from the ulna by its anterior flat surface, from its coronoid process, 



