Arteries of the Head. 



391 



Ramus 

 parietalis ' 



. temporalis 



uperflcialis 



Bamus 

 occipitalis 



Ramus 

 aurieiilaris 



Rami auriculares - 

 anteriores 



A. occipitalis 



Branch of the a. auri 

 cularis posterior 



A. frontalis. 



_A. supraorbitalis 



- - Ramus frontalis 



A. zygomatico- 

 orbitalis 



A. dorsalis nasi 



A. transversa 

 faciei 



^ A. infra- 

 orbitalis 



A. angularis 



A. labialis superior 



A. labialis inferior 



A. submentalis 



Glandula parotis A. maxillaris externa 



436. Superficial arteries of the face, viewed from the right. 



(The platysma, m. risurius and m. quadratus labii siiperioris have been removed.) 



5. A. sternocleidomastoidea (see Fig. 434) arises, at the same level as the a. maxillaris 

 externa , from the posterior wall and goes in a curve, in front of the n. hypoglossus and the 

 v. jugiilaris interna, lateralward and downward to the m. stemocleidomastoideus. 



6. A. occipitalis (see Fig. 438), somewhat above the previous artery, from the posterior 

 wall, runs at first upward upon the v. jugularis interna, covered by the venter posterior of the 

 m. digastricus ; then it goes backward in the sulcus a. occipitahs between the m. rectus capitis 

 lateralis and the m. iongissimus capitis, then between the m. semispinaUs capitis and the 

 m. splenius capitis; finally it bends upward and arrives between the insertions of the mm. trapezius 

 and stemocleidomastoideus at the linea nuchae superior upon the m. epicranius. Branches: 



a) Rami musculares to the m. sternocleidomast. and neighboring muscles; among these 

 aa) Ramus descendens, downward between the mm. splenius capitis and semispinalis capitis. 



b) Ramus mastoideus through the foramen mastoideura to the dura mater (see also Fig. 439). , 



c) Ramus auricularis obliqueh' upward and forward toward the ear. 



d) Rami occipitules, very tortuous, upward: those of the two sides anastomose with one 

 another and with the a. temporalis superficialis. A small branch, the ramus meningeus, 



goes through the foramen parietale to the dui-a mater. 



7. A. auricularis posterior (posterior auricular artery) (see Figs. 434 and 438), above 6) 

 from the posterior wall, runs, covered by the glandula parotis, on the_ upper margin of the venter 

 post. m. digastrici, upward and in front of the proc. mastoideus behind the ear. Branches : 



