VESSELS OF THE FACE. 559 



anastomose with the trans verse facial branch of the superficial temporal 

 artery. From the inner side are given the following branches : 



The inferior labial branch (t) runs inwards beneath the depressor inferior 

 anguli oris muscle, and is distributed between the lower lip and labial - 

 chin ; it communicates with the inferior coronary, and with the 

 mental branch of the inferior dental artery. 



Coronary branches (r and s). These are one for each lip (superior Two 

 and inferior), which arise together or separately from the facial, 

 and are directed inwards between the orbicular muscle and the arc | 1 in 

 mucous membrane of the lip to inosculate with the corresponding 

 branches of the opposite side. From the arterial arches thus 

 formed offsets are supplied to the structures of the lip. From the 

 arch in the upper lip a branch is given to each side of the septum branch to 

 narium, artery of the septum. septum. 



The lateral nasal branch (p) arises opposite the ala nasi, and Lateral 

 passes beneath the levator labii superioris alaeque nasi to the side branch 

 of the nose, where it anastomoses with the nasal branch of the 

 ophthalmic artery. 



The angular branch (6) is the terminal twig of the facial artery at Angular 

 the inner angle of the orbit, and joins the nasal branch of the 

 ophthalmic artery. 



The FACIAL VEIX commences at the root of the nose in a vein Facial vein 

 named the angular. It then crosses over the elevator of the 

 upper lip, and, separating from the artery, courses beneath the large away from 

 zygomatic muscle to the side of the jaw. Afterwards it has a short artery; 

 course in the neck to join the internal jugular vein. 



Tributaries. At the inner side of the orbit the angular vein Joined by 

 ,. , T -I / 7 7 7\ i < branches, 



receives veins from the upper eyelid (superior palpebral) and from 



the side of the nose. Below the orbit it is joined by veins 

 from the lower eyelid (inferior palpebral), as well as by a large 

 branch, anterior internal maxillary or deep facial vein, that conies 

 from a plexus in the pterygoid region, and thence on to its 

 termination by veins corresponding with the branches of the artery 

 in the face and neck. 



The TRANSVERSE FACIAL ARTERY (fig. 204) IS a branch of the Transverse 



superficial temporal, and appears on the face at the anterior border facial artery, 

 of the parotid gland. It lies by the side of the parotid duct, 

 with branches of the facial nerve, and distributes offsets to the 

 muscles and integuments ; some branches anastomose with the 

 facial artery. 



Dissection. The parotid gland in front of the ear may be next Lay bare 

 displayed. A strong fascia covers the gland, and is connected g 1 J| n ^ arotld 

 above to the zygomatic arch and behind to the cartilage of the Parotid 

 ear, but is continued in front over the masseter muscle. The fascia is fascia, 

 to be removed, so that the gland may be detached slightly from the 

 parts around. The great auricular nerve will be seen ascending to 

 the lobule of the ear ; and three or four small lymphatic glands Parotid 

 rest on the surface of the gland. gffis? tic 



The PAROTID fig. 213, 10 , p. 589) is the largest of the salivary Parot jd 

 glands. It occupies the space between the ear and the lower jaw, gland: 



