Plate YL— SUPERFICIAL DISSECTION. 



;Ie. 2. Cartilage of prolongation. 3. Supraspinatus muscle. 4. Teres 

 Brachial plexus. 8. Subcutaneous thoracic nerve. 9. Suprascapular 

 lerve. 12. Nerve to teres major. 13. Anterior root of median nerve. 

 6. Musculo-spiral nerve. 17. Cut end of axillary arter^' lying in loop 

 tuberosity of humerus. 20. Axiilarj- artery 



Fore Limb (right). Inner aspect.— i. Subscapularis n 

 5. Subscapular nerve. 6. Nerve to latissimus dorsi. 

 10. Subscapular artery- (branch oQ n. Suprascapu!; 



rcumflex nerve. 15. Posterior root of median nerve, 

 roots of the median ner\'e. 18. Artery 



continued inferiorly as the brachial. 21. Median nerve. 22. Scapulo-ulnaris muscle (the upper end has been removed to display the 

 structures beneath it). 23. Nerve to the biceps muscle. 24. Brachial vein. 25. Prehumeral artery and vein. 26, Deep humeral arterj' 

 and vein. 27. Coraco-humeralis muscle. 27A. Musculo-cuianeous branch of median nerve. 28. Ulnar nerve (slightly displaced, see bcltKu). 

 29. Biceps muscle. 29A. Artery to biceps. 30. Ulnar artery. 31. Cut end of ba<iilic vein (the vein has pierced the posterior superficial 

 pectoral muscle and unites with the posterior radial and ulnar \ ' " '" ' " - - 



f olecranon process of i 



Flex 



radial vein and artery with median nerve between them. 



36, Flexor metacarpi medius. 37. Extensor metacarpi magnus. 



The brachial plexus has been pinned down to secure it in position. It is thus flattened out, with the result that the ulnar n. 

 has been drawn slightly backwards with the scapulo-ulnaris muscle) runs down behind, instead of in front of, the niusculo-spiral. 



