NERVOUS SYSTEM 69 



2. The .Suprascapular Nerve, which supplies the 

 supra- and infra-spinal us muscles. 



3. Several Subscapular Nerves, which supply the 

 subscapular, teres major, and latissimus dorsi mus- 

 cles. 



4. The Musculo-cutaneous Nerve, which supplies 

 the biceps, the brachialis anticus, and coraco-bra- 

 chialis muscles, and the skin of the outer side of 

 the fore-leg below the elbow. 



5. The Circumflex Nerve, which passes between 

 the subscapular and teres major muscles, and sup- 

 plies the deltoid and teres minor muscles and the 

 skin of the shoulder. 



6. The Musculo-spiral Nerve, which winds around 

 the humerus and is distributed to the skin and 

 muscles of the fore-leg. 



7. The Median Nerve, which passes through the 

 internal condyloid foramen and supplies muscles 

 on the ventral side of the fore-leg. 



8. The Ulnar Nerve, which is distributed to the 

 muscles and skin of the fore-leg. 



9. The Internal Cutaneous Nerve, which supplies 

 the skin on the inner side of the fore-leg. 



10. The Anterior Thoracic Nerve, which supplies 

 the pectoral muscles and part of the latissimus 

 dorsi muscle. 



B. Lumbar Plexus. (Plate VII., E.) 



The Lumbar Plexus is composed of the ventral 

 divisions of the fourth, fifth, sixth, and seventh 



