BEACHIAL AETEEY. 



Fig. 270. 



cover of the triceps, and perforating the 

 external intermuscular septum, reaches 

 the external and anterior aspect of the 

 bone. There the artery lies deeply in the 

 interval between the brachialis anticus 

 and supinator longus muscles, considerably 

 diminished in size by having given off 

 several branches, and descends to the 

 elbow, where it anastomoses with the 

 recurrent branch of the radial artery. 



Fig. 270. SUPERFICIAL VIEW OF THE ARTERIES 

 OF THE ARM, FORE-ARM, AND HAND IN FRONT 

 (from Tiedemann). 



, deltoid muscle ; &, biceps ; I', the aponeu- 

 rotic insertion ; c, scapular head of the triceps ; 

 e', its internal head ; d, pronator radii teres ; e, 

 flexor carpi radialis ; /, palmaris longus ; f, its 

 tendon spreading in the upper part of the palmar 

 fascia, from which, on the inner side, the pal- 

 maris brevis muscle is seen rising ; g, flexor 

 carpi ulnaris ; 7i, supinator radii longus ; i, 

 extensor carpi radialis longior ; I, extensor ossis 

 metacarpi pollicis ; m, flexor digitorum com- 

 munis sublimis ; 1, placed on the tendon of the 

 latissimus dorsi, the lower part of the axillary 

 aitery, continued into the brachial ; 2, superior 

 profunda ; 3, inferior profunda; 4, ulnar ana- 

 stomotic ; 5, near the division of the brachial 

 artery into ulnar and radial, and recurrent radial 

 artery ; 5', lower part of the radial artery, where 

 it gives off the superficialis vola?, and turns 

 round the wrist ; 6', the lower part of the ulnar 

 artery, near the place where it passes down to 

 form the superficial palmar arch ; 7, the super- 

 ficialis volae, which joins it ; 8, 8, 8, 8, first, 

 second, third, and fourth digital branches of the 

 superficial arch to the inside of the little finger, 

 adjacent sides of the 4th and 5th, 3rd and 4th, 

 and 2nd and 3rd fingers; 9, radialis indicis ; 

 on the thumb are seen the two branches of the 

 princeps pollicis artery. 



The superior profunda gives off branches in 

 its first part to the deltoid, coraco-brachialis, 

 and triceps ; and many to the last-named mus- 

 cle, whilst it is between it and the bone. In. 

 this position it also gives one long branch, 

 which descends perpendicularly between the 

 muscle and the bone to the back part of the 

 elbow-joint on the outer side, where it anasto- 

 moses with the interosseous recurrent branch ; 

 and another which anastomoses on the inner 

 side with the ulnar recurrent and the anasto- 

 motic or the inferior profunda. 



(6) The inferior profunda artery (col- 

 lateralis uluaris prim a), of small size, 

 arises from the brachial artery a little 

 below the middle of the arm, and is 



