7 o OUTLINES OF ANATOMY. 



Branches of the ulnar artery in the forearm, 565-6-7-8. (555-6-7) 

 Anterior ulnar recurrent. Posterior ulnar recurrent. 

 Interosseous, or common interosseous artery. 

 Muscular branches of the ulnar artery. 

 Nutrient artery of the ulna. 

 Posterior ulnar carpal. Anterior ulnar carpal. 

 Ulnar vein accompanies the artery. 

 Ulnar nerve, 840. (8201) 



Branches : Nerves to the flexor carpi ulnaris and flexor profundus digitorum. 



Origin of palmar cutaneous and dorsal or posterior branch. 

 Median nerve, 838. (817-18-19) 



Branches : Nerve to the pronator radii teres. 



Nerves to the flexor carpi radialis, palmaris longus, and flexor sub- 



limis digitorum. 



Origin of palmar cutaneous branch. 

 Flexor profundus digitorum, 335-6-7 ; Fig. 275. (336-7-8) 



Origin. (Insertion. Structure.) Nerve-supply. Action. Relations. Variations. 

 Flexor longus pollicis, 337-8 ; Fig. 275. (338-9) 



Origin. (Insertion.) Structure. Nerve-supply. Action. Relations. Variations. 

 Pronator quadratus, 338 ; Fig. 284. (339) 



Origin. Insertion. Structure. Nerve-supply. Action. Relations. Variations. 

 Anterior interosseous artery, 566. (555-6-7) 



Branches of the anterior interosseous artery : 



Arteria comes nirvi mediani, or median. 

 Muscular branches. Nutrient arteries. 

 Anterior terminal, anterior carpal rete. 

 Anterior interosseous nerve, 838. (819) 



Landmarks of the Wrist and Hand, 1198 to 1204. 1173 to 1180. 

 Bony points. 

 Skin folds. 



Thenar and hypothenar eminences. 

 Superficial palmar arch. Deep palmar arch. 



Dissection of the Wrist and Hand. 



Continue the median incision to the interval between the second and third ringers. Make a transverse 

 incision at the base of the fingers, and median incisions to the end of each finger and the thumb. Turn 

 the skin each way from the median incisions. 



Cutaneous nerves of the palm : Fig. 456. P. 836. (P. 817) 



Palmar cutaneous branch of the radial nerve, 841-2. (823) 

 Palmar cutaneous branch of the median nerve, 838. (819) 

 Palmar cutaneous branch of the ulnar nerve, 840. (821) 

 Anterior median plexus of veins, 679. (665) 

 Palmaris brevis, 352-34; Fig. 280. 



Origin. Insertion. Structure. Nerve-supply. Action. Relations. Variations. 

 Palmar fascia, 351-2. 1206-7. (1182) 

 Outer division, or thenar fascia. 

 Inner division, or hypothenar fascia. 



Divide the palmar fascia along the digital border of the annular ligament, leaving the ligament in place. 

 Turn the fascia forward toward the fingers, noting its relations to the deeper structures, then remove it. 



The ulnar artery at the wrist, 568. (557-8) 



Relations : In front. Below. Internally. Externally. 

 Superficial branch, superficial palmar arch, 568-9. (558-9-60) 

 Relations : In front. Behind. 



Variations in the superficial palmar arch, 569-70. . (560) 

 Branches of the superficial palmar arch, 570-1. (560) 

 Digital arteries: 



First digital artery. 



Second, third, and fourth digital arteries. 



Collateral digital arteries. 



