////' x.u./r. I/,-)' 



M7 



Fig. 172. 



Vessels and nerves of the parotid t/land. Thin gland receives its blood 

 by a multitude of <i/-/*r/W branches from tin- lariie vessels it covers. Its 

 nerve* are very numerous, and are derived from the facial and inferior 

 maxillary nerves, and the carotid plexus. 



'n /ml. The parotid gland is provided with a single excretory 

 canal, the '/"/ H/ Strm>n, so named from the anatomist who gave the first 



: iption of it. It is 

 detached from the anterior 

 border of the gland, near its 

 inferior extremity, where the 



:;iy readily follow it be- 



. the lobules to the three 



>ur principal brandies 

 from which it originates (Fig. 

 17-' >. At first in contact 

 with the terminal tendon of 



erno-maxillaris, it after- 

 wards turns round the pos- 

 terior border of the digastric 

 nmsele (stylo-maxilluris por- 

 tion), advances into the sub- 

 niaxillary space, creeps over 

 the internal masseter muscle 

 (pterygoid), beneath the 

 glosso- facial vein, and arrives 

 at the maxillary fissure, into 

 which it enters with* the 

 aforesaid vein and corre- 

 sponding artery, but behind 

 both. It then ascends ex- 

 ternally along the anterior 

 border of the masseter 

 muscle to the level of the 



ior molars, when it 

 passes beneath its two satel- 

 lite vc ->sels, obliquely crosses 

 their direction, and pierces 

 the clieek towards the third 

 upiKjr molar tooth, opening 

 into the m , m th by a large 

 tnl >r^lr> ' ' ntl ' r '" r bowler <>t lower jaw; 2, (Maio-fijoidea*; ::. 



Y '"' M>|..-hy..idi'iis: 4, Siilim.-ixillan . I>itt 



Ine parotid duct is com- V( ; in . ,; p ;1I ,, t j,i ( i tll .t ; 7. Bterao-oMzUbiii t,.ni,,n : 



posed of two membranes: x. mM : '.'. StiTiio-niaxillariH muscl.-: l.i. 



the internal, mucous, with n - 1- A Submaxillary glands; i:t, St,-ni..-thyr.- 



.-..Inmnar epithelium; and hyoideus and subscapulo-hyoideu. mu^les ; 14, Thv- 



.* ' roid gland; l., I'tervgoideus internus. 



the ( vt'Tiial, made up of con- 



ni -ctive tissue, and circular and longitudinal clastic fibres. 



2. Majcillary or Subuinsilhirii <;.' i^s. 172, 173.) 



,-ati'in. To cxj> well a.s tlio HuMiii^mil, ilivide the maxilln, as 



in |>n |uriiig tin- iniucli-ri of the tunguc for dUscctiou (see p. :i">! > 



This gland, smaller than the preceding, is <itnatod in the intermaxillary 

 space, on the lateral plane of the larynx, and within the pan tid gland. 



