304 



RADIAL ARTERY, 



Fig. 151.* 



inosculates with the radial recurrent branch. It 

 accompanies the musculo-spiral nerve. In its 

 course it gives off the posterior articular artery, 

 which descends to the elbow joint, and a more 

 superficial branch which inosculates with the in- 

 terosseous articular artery. 



The Inferior profunda arises from about the 

 middle of the brachial artery, and descends to 

 the space between the inner condyle and olecra- 

 non in company with the ulnar nerve, where it 

 inosculates with the posterior ulnar recurrent. 



The Anastomotica magna is given off nearly 

 at right angles from the brachial, at about two 

 inches above the joint. It passes directly inwards, 

 and divides into two branches which inosculate 

 with the anterior and posterior ulnar recurrent 

 arteries and with the inferior profunda. 



The Muscular branches are distributed to the 

 muscles in the course of the artery, viz. to the 

 coraco-brachialis, biceps, deltoid, brachialis an- 

 ticus and triceps. 



Varieties of the Brachial Artery. The most 

 frequent peculiarity in the distribution of branches 

 from this artery is the high division of the radial, 

 which arises generally from about the upper third 

 of the brachial artery, and descends to its normal 

 position at the bend of the elbow. The ulnar 

 artery sometimes arises from the brachial at 

 about two inches above the elbow, and pursues 

 either a superficial or deep course to the wrist ; 

 and, in more than one instance, I have seen the interosseous artery arise 

 from the brachial a little above the bend of the elbow. The two profunda 

 arteries occasionally arise by a common trunk, or there may be two superior 

 profundae. 



RADIAL ARTERY. 



The Radial artery, one of the divisions of the brachial, appears, from 

 its direction, to be the continuation of that trunk. It runs along the radial 

 side of the fore-arm, from the bend of the elbow to the wrist ; it there 

 turns around the base of the thumb, beneath its extensor tendons, and 



* The arteries of the fore-arm. 1. The lower part of the biceps muscle. 2. The inner 

 condyle of the humerus with the humeral origin of the pronator radii teres and flexor 

 carpi radialis divided across. 3. The deep portion of the pronator radii teres. 4. The 

 supinator longus muscle. 5. The flexor longus pollicis. 6. The pronator quadratics. 7. 

 The flexor profundus digitorum. 8. The flexor carpi ulnaris. 9. The annular -ligament 

 with the tendons passing beneath it into the palm of the hand ; the figure is placed on 

 the tendon of the palmaris longus muscle, divided close to its insertion. 10. The brachial 

 artery. 11. The anastomotica magna inosculating superiorly with the inferior profunda, 

 and inferiorly with the anterior ulna recurrent. 12. The radial artery. 13. The radial 

 recurrent artery inosculating with the termination of the superior profunda. 14. The 

 superficialis volas. 15. The ulnar artery. 16. Its superficial palmar arch giving oft' di- 

 gital branches to three fingers and a half. 17. The magna pollicis and radialis arteries. 

 18 The posterior ulnar recurrent. 19. The anterior interosseous artery. 20. The poste- 

 rior interosseous, as it is passing through 'he interosseous membrane. 



