THE UPPER LIMB 



343 



;ondyle, where it terminates by dividing into the radial and posterior 

 interosseous nerves. 

 Branches— /«/^«a/ Branches —These, which arise on the inner 



Latissimus Dorai ^^ 



Teres Major 



Long Head of Triceps 

 Internal Head of Triceps 



Inar Nerve behind Internal 



Epicondyle 



Teres Minor 



External Head of 

 Triceps 



Musculo-spiral Nerve 



and Superior 



Profunda Artery 



--Tendon of Triceps 

 —External Epicondyle 



Anconeus 



Fig. 1 89. — Dissection of the Back of the Brachial Region. 



'External Head of the Triceps has been divided and reflected outwards 

 to show the contents of the Spiral Groove.) 



ide of the humerus, are muscular and cutaneous. The muscular 

 tranches supply the long and internal heads of the triceps, 

 ihose for the long head entering it high up, whilst those for the 

 nternal head enter it at different levels. One of the latter, which 



