Plate XXXIV. — The Caupal Arterial Arches and the Veins of the Fore Limb 



A. — THE SUPKACAKPAL AND SUBCARPAL ARCHES (SCHEMATIC, AFTER SHAVE) 



I. Brachial artery. 2. Posterior radial artery dividing just above carpus. 3 Anterior radial artery which ter- 

 minates at carpus by anastomosing inwardly with branches of posterior radial and outwardly with interosseous 

 artery. 4. Small metacarpal arter)-. 5. Ulnar artery 6. Internal palmar interosseous artery. 7. Supra- 

 carpal arch. 9. Subcarpal arch. 11. External palmar interosseous artery. 13. Large metacarpal artery. 

 15. Digital arteries. 



B. — FORMATION OF PRINCIPAL VEINS OF FORE LIMB (SCHEMATIC) 



1. Digital vein. 2. Venous arch formed above fetlock across limb between suspensory ligament and tendon of 

 flexor perforans. 3. Internal metacarpal vein. 4. External metacarpal vein. 5. Median or internal subcutaneous 

 vein of forearm. 6. Interosseous or deep metacarpal vein. 7. Anterior subcutaneous or radial vein which begins 

 at carpus and empties into cephalic vein or the median. 8. Plexus formed at carpus. 9. Cephalic vein which 

 opens into jugular. 10. Ulnar vein. 11. Basilic vein which pierces posterior superficial pectoral muscle from 

 without inwards. 12. Posterioi radial veins. 14. Brachial vein continued upwards as axillary vein which forms 

 the anterior vena cava near anterior border of first rib by joining jugulars and axillary vein of opposite side. 



