72 SURGICAL ANATOMY OF 



either upon or beneath the capsule of this gland, and 

 can be readily felt beneath the integument. Beneath 

 this aponeurosis, and inclosed by that portion of it 

 which is attached to the cornu of the hyoid bone, are 

 the submaxillary gland, the stylo-hyoid and digastric 

 muscles. The fibres of the stylo-hyoid are seen inclos- 

 ing the tendon of the digastric and inserted into the 

 hyoid bone, just before that muscle passes through the 

 loop derived from the deep cervical fascia. The mus- 

 cular fibres of the posterior belly of the digastric are 

 superior to those of the stylo-hyoid, and after being re- 

 flected from the hyoid bone, spread out into a large 

 muscular mass, having many tendinous intersections 

 (frequently interlacing with the opposite muscle), to be 

 inserted into the digastric fossa of the inferior maxilla. 

 Lying in the interval between the two bellies of the 

 digastric, and overlapped by its posterior belly, and by 

 the body of the jaw, is the submaxillary gland, inclosed 

 in its capsule, the posterior portion of which is continu- 

 ous with the stylo-maxillary ligament, which separates 

 it from the parotid gland, and superior to it is the facial 

 artery and vein ; the submental branches of these vessels, 

 with the nerve to the anterior belly of the digastric, pass 

 forwards towards the symphysis under cover of the body 

 of the jaw. The bulk of the gland being pulled up- 

 wards from the fossa in which it is lodged, it will be 

 observed that a portion of it passes beneath the mylo- 

 hyoid muscle, upon which the greater part of it rests. 



Parts beneath the Mylo-hyoid. The mylo-hyoid mus- 

 cle should now be divided and reflected, when from 

 before backwards will be seen the genio-hyoid anteriorly, 

 and deeper down the genio-hyo-glossus, along the outer 

 side of which lie the ranine vessels, and external to it 



