Submandibular gland

Glandula submandibularis is a seromucinous gland with a predominance of serous component. It is stored in the trigonum submandibulare. In some cases, it extends beyond the front and back edges of the trigonum submandibulare. Sometimes it also extends into the trigonum sublinguale and can connect with the glandula sublingualis.

Ductus submandibularis crosses the n. lingualis when turning to the cranial side m. mylohyoideus and continues along the inner side of the glandula sublingualis. It opens in the caruncula sublingualis together with the ductus sublingualis major.

Histology
Glandula submandibularis is a mixed seromucinous gland with a 'predominance of serous component. It contains serous alveoli with inserted and annealed ducts, in smaller quantities also mucinous tubules, on which groups of serous cells that resemble crescents (Gianuzzi's lunula) mount.

Blood vessels and nerves
Branches for arterial supply go from a. facialis and a. lingualis. The veins converge into v. facialis' and v. lingualis'. The lymphatic drainage of this area leads to the nodi lymphatici submandibulares and from them to the deep neck nodes.

Sympathetic fibers come along with arteries, parasympathetic] originate from [[n. facialis (n. intermedius) as chorda tympani and from n. lingualis to ganglion submandibulare and from there rr. glandulares'. Sensitive branches originate from n. lingualis.

Related Articles

 * Trigonum submandibulare
 * Facial nerve
 * Salivary gland innervation
 * Salivary glands
 * Parotid gland
 * Glandula sublingualis