MI 8CLE8 r Tin: 77,T.\A'. 



231 



II. Tin- triniHjnltir!* <>/ Ihv 



inferior maxilla, ami i* carried upwards t<>th 

 commi.-siire of tin- lips. By its contraction it 

 - the face au expression of melancholy or 



pt. 



TJ. Tin- i/iiii<lriiln.< iiii-iili, which. a:ter lieinij 

 hed ti> tin- maxilla within the m.-ntal fora- 

 men, | a.-.-, -s upwards on the skin of the lower 

 lip. which it depresses nnd thus contributes to 

 \pres.-ioii of tear or dismay. 



I:!. Tile tr<l i.-i-, ;><(//> n:l.i (f.nnfii; xx,,,- //,,>). 



a musi-le which is lixed into tiie Hip rmaxilhi 

 and on the bridge of the nose, when- it is con- 



tolllidid with theopp site llllisrle 



14. The <// /((/or <>f tlte ala of Hi" /..>/ ///, a 

 >mall trianu'ulir taseicnlu.s appliel to t lie 

 e\t-T!ial jiart (" th- nostril, which, l>y coiilrac;- 

 in;.', it 



' '*/ the iMWtr .Inn-. 



i- nothim: rein irkalde to lie noted in 

 .'/. t> in/ unil. or /i/i ///;/<'/(/ mu>eli->. 

 upjM r lielly of the ili'<jn.<trifii* is not at- 

 tly to the inferior maxilla. 



D. lli/niil Miinrles. 

 These ure only three in number: 



1. The )nyl<i-lii/iilt .. 



2. The *l>/li>-liy,>ideu*. which commences at 

 the >tyloid process of the temporal bone, and 



rinjr for the tendon of the dijjastricus. 

 :!. The (ji-iiiii-hi/nitlt us. 



We do not tind in Man tlieoccipito-styloideus, 

 kerato-hyoideus, or the transversalis-hyoideus. 



Axillary Region. 



This comprises two muscles, pairs, 

 j>lac< ! beneath the sternum, in the arm- 

 pit, uliich terminate on the anterior limb. 



Tin.-- :ir; thr xiijx rfifiul siml <lnj> pec- 



'i*. 1 



l'i-' i 



which in inserted iut<> the anterior face of the 



Ki- ITt 



MUSCLES OF T1IF. Iir.MAX HEAD; 

 SUPERFICIAL LAYER. 



1, Frontal portion of the occipito-fronta- 

 lis ; 2, Its occipital portion ; 3, Its 

 aponeurosis ; 4, Orbicularis palpebra- 

 rum ; 5, I'yramidalis nasi ; 6, Com- 

 pressor nasi ; 7, Orbicularis oris ; 8, 

 Levator labii superioris alacque n;isi : 

 tl, Lerator labii superioris proprius: 

 10, Zygomaticus minor; 11, Zygo- 

 maticus major; 12, Depressor i;il>ii 

 iuferioris ; l.'i, Pfpn-s-sor an_'iili oris; 

 14, Levator labii int'erioris ; !,">. Sujier- 

 h'cial portion of masseter ; 1<3, Its deep 

 portion; 17, Attraht-ns aurem ; 18, 



ir; 1 1". At tulli-ns auroiu : _'", 

 fasi-ia cuvrriiiLC l<-inpora| 



I'l, Ketraliens aiirem ; --. 



liidly of the digastrirus, with 



i.iv-ini; throagO |itillf\ : 



iiuisi-le; .'4, Mylc.-hyoi- 



toiil ; '-'I!, I'pp.T part of trajx-zius 

 tin- muscle between L'"> and _'; is thu 

 splenius. 



'i. 1. Place the animal in the 



2. rnfa.Menolie of the fore-limbs, 



ami all<iw it to hang, 80 as to separate it from 



Remove the skin with 



nd dissect, on the side corresponding to 



the detached ]i|||)i. til" t Wo lIlll.-clcS whicll form 



the superficial pectoral, t. 1'n pare the di i p 



ml oil the opposite side. To do this, 



e the panniciifuH cautiously, so us not to injure the muscle about to be examined ; 



divide the MijM-ifi.-ial pi <-t >ral tiansvir.-ely, and turn back the cut portions to the rijjht and 

 divide al.-o the inasloido-humerali-i levutor humeri) and cervic.il tiajn'/iua no.ir 

 tin ir in.M ition into tin- limb, and n tli ct them upon the mi k. 



1. Superficial Pectoral. (Fig. 114, 9, 10.) 



Syiiintymt. Muscle common to the arm and (ore-arm --H\tr<j>l<it. Peclondis mngnus 



r*ut Percinill. l.eyh divide* this mnscle into two portion*, 



he designates the tterno-radiolit and tmau uterno ' 



i justilication of the i mploym:it of the*3 new denominations, M-- the note 

 at p. 177. 



