THE SPINAL NERVES. 183 



(b) Muscular twigs to the Lo7igismrius dorai, Intertransversarii 

 cajiitis, Levator angidi scapulae^ and the RetraJiens scapulae. 



{c) When near the glossopharyngeal it supplies twigs to the 

 Geniohyoicleus, Sternohyoid eus, and Omohyoideus, where it bifurcates. 



(f/) One of the branches passes inwards to supj^ly the Hyoglossus. 



[e) The other terminal branch passes forwards with the Ramus 

 Hngualis and the glossopharyngeal, between the fibres of the Genio- 

 hyoideus, which it partially supplies, and sends t^\'igs to the neigh- 

 bouring parts. 



(y) [Hoffmann describes a communicating branch to the pneu- 

 mogastric nerve, which the translator has not been able to discover, 

 and which no other observer has mentioned.] 



2. The second spinal or brachial nerve {N. hrachialis, N. spinalis 

 II), (Fig. 122) is a large nerve, leaving the vertebral canal between 

 the second and third vertebrae ; it then accompanies the Art. axil- 

 laris along the anterior border of the transverse process of the third 

 vertebra, over the hinder end of the Muse, levator scapulae and the 

 anterior end of the m. transver so-scapular is major, to the inner border 

 of the Muse, suhscapularis , under which it passes into the arm. In 

 this covirse it gives off or receives the following branches : — 



(«) It first receives a branch from the second spinal nerve. 



(^) It gives off a large branch, the N. eoraco-clavicîclaris (¥ig. 122 

 Cc), which first accompanies a branch of the Ari. axillaris on the 

 Muse, levât, scapulae, then courses forwards and outwards over the 

 Muse, subscapmlaris to pass from above into the Foramen ovale be- 

 tween the clavicle and coracoid bones. It gives off two branches : 



(i) One immediately beyond its origin, which runs backwards 

 over the Muse, sutjscapularis to supply the Muse, obliq. abdominis in- 

 ternus (Fig. 122 Cc'). 



(2) While in the Foramen ovale, the N. coraco-clavieularis bifur- 

 cates ; the anterior twig runs forwards and outwards to the deltoideus 

 and also supplies a recurrent filament to the Muse, sterno-radialis ; 

 the posterior twig enters the upper surface of the Muse, sterno- 

 radialis. 



(c) At the outer extremity of the Muse, transverso-scapularis the 

 brachial nerve gives off a posterior branch, which at once bifurcates : 



(i) The first branch passes into the under surface of the Muse, 

 latissimus dorsi {Id), giving a twig to the Infraspnnatus. 

 / (2) The second is the Ramus cutaneus axillaris {He) ; it passes on 



