Submandibular gland

Submandibular gland (glandula submandibularis) - steam room salivary gland; it belongs to the group of salivary glands actual mouth.
The shape of the structure of secretory departments submandibular gland is alveolar, the nature of allocated secret - mixed. Excretory ducts inside the gland, fall into the common duct that opens in the front section sublingual region in hypoglossal meat (caruncula sublingualis). Excretory duct of the submandibular gland (Vartanov duct, ductus submandibularis) is divided into two parts - negalesite and vnutrijeludockovu; it has a smooth muscles supporting the promotion of saliva on the channel. The length of the duct 5-7 cm clearance 2-4 mm
Submandibular gland is between abdomens digastric muscle and lower jaw in the submandibular triangle (trigonum submandibulare) is loosely associated capsule (second sheet cervical fascia). P. W. has branches, of which a front with the flow takes place in the narrow space between sublingual-speaking and oral sublingual muscles and binds the fibers Lodge P. W. with fiber bottom of the mouth (printing. Fig. 1 and 2).

Fig. 1. Submandibular and sublingual region (the right half of the lower jaw removed, the skin and the muscles are drawn).
Fig. 2. Sublingual region (part of the mucous membrane removed).
1 - lingua; 2 - gl. lingualis ant.; 3 - a. profunda linguae; 4 - ductus submandibularis; 5 - gl. sublingualis; 6 - mandibula (partially removed); 7 - m. mylohyoideus; 8 - m. geniohyoideus; 9 - gl. submandibularis; 10 - a. facialis; 11 - v. facialis; 12 - ramus descendens n. hypoglossi (BNA); 13 - m. sternocleidomastoideus; 14-v. jugularls int.; 15 - a., carotis int.; 16 - a. carotis ext.; 17 - n. hypoglossus; 18 - venter post. m. digastrici; 19 - m. stylohyoideus; 20 - gl. parotis; 21 - m. masseter; 22 - v. profunda llngyiae; 23 - ramus mandibulae (partially removed); 24 - n. lingualis; 25 - caruncula sublingualis; 26 - plica sublingualis; 27 - frenulum linguae; 28 - m. hyoglossus; 29 - basis mandibulae; 30-v. retromandibularis; 31 - platysma; 32 - lamina superficialis fasciae cervicalis; 33 - ramus marginalis raandibulae n. facialis; 34 - venter ant. m. digastrici; 35 - nodi lymphatici submandibulares; 36 - nodi lymphatici cervicales profundi.

The blood supply of the submandibular gland is mainly due to the facial artery (a. facialis), and partly from the chin. submenlalis) and speaking of the arteries (a. lingualis). Vienna P. W. fall into the chin Vienna (v. submentalis) and face (v. facialis).
Damage P. W. with the formation of external salivary fistula occurs rarely. Excretory duct P. W. could injure drive from rough teeth preparation. Salivary eliminate fistula surgery (see Parotid gland).
The most common disease of the submandibular gland is clonakenny disease (see Sialolithiasis). Inflammatory processes - both acute and chronic, in P. W. there are less than clonakenny disease. Acute inflammation P. W. (see Sialadenitis) occurs more often in the penetration gland infection with foreign body or develops as a complication on the background of severe General condition of the patient with pneumonia, influenza, and so on, Chronic inflammation P. W. may be nonspecific, or (rarely) specific. In chronic inflammation P. W. to identify the pathological process and for the differential diagnosis apply sialography (see).
Cysts submandibular glands are formed in the obliteration of small ductless.
Tumor P. W. can be benign, malignant and (more often) the so-called mixed. Treatment of cysts and benign tumors P. W. is their destruction together with the gland. In malignant tumors apply combined treatment of surgical and radiation. Cm. also the Salivary glands.