What Are Submandibular Glands?

The submandibular gland is located in the submandibular triangle surrounded by the lower edge of the mandible and the anterior and posterior abdomen muscles. The catheter is issued from the inner side of the gland, runs along the front of the mucous membrane at the bottom of the mouth, and opens in the sublingual fu.

The submandibular gland is located in the submandibular triangle surrounded by the lower edge of the mandible and the anterior and posterior abdomen muscles. The catheter is issued from the inner side of the gland, runs along the front of the mucous membrane at the bottom of the mouth, and opens in the sublingual fu.

The catheter is issued from the inner side of the gland, runs along the deep front of the mucous membrane at the bottom of the mouth, and opens in the sublingual fu.

The submandibular gland has facial veins and branches of the facial nerves passing through it; the deep submandibular gland bed includes 1 catheter (submandibular duct), 2 arteries (tongue artery, facial artery), 3 nerves (tongue nerve, glossopharyngeal nerve, sublingual nerve). There is also a submandibular ganglia deep above the submandibular gland, the upper lingual nerve, and the lower branch branching from the submandibular gland.

Submandibular glands are mixed glands, but mainly serous acinar. The submandibular glands are oval-shaped, the size of a walnut. Most of them are located in the submandibular gland formed by the submandibular triangle and the superficial layer of the deep cervical fascia. The mandibular ligaments are separated from the parotid glands by the styloid process. The submandibular gland duct is about 5 cm long and has an inner diameter of about 2 to 4 mm. It is emitted from the inner side of the gland and opens to the sublingual flesh next to the tongue band. The catheter is long and curved, and it is easy to stagnate when the saliva flows slowly. In addition, the catheter mouth is large, foreign bodies are easy to enter, and it is easy to induce glandular stones, especially catheter stones.

Chinese name

Submandibular gland

Foreign name

submandibular gland

Location

Inferior margin of mandible and anterior biceps

Autologous submandibular gland transplantation

On the one hand, the submandibular gland loses its original innervation, and its secretion mechanism changes. On the other hand, the transplanted gland has a process of blood reperfusion and re-domination. The above two factors determine the secretion law of the transplanted gland.

Regarding the temporary secretion of the transplanted glands, Geerling et al. Believe that the parasympathetic synapses are overly sensitive to acetylcholine after the glands are denervated, which is clinically found to start with temporary tears 2-3 days after surgery Spilling, the secretion of the transplanted glands in the first week after operation was consistent with this phenomenon. After that, due to local acetylcholine depletion, the glands secreted into the dormant period. Rawlinson et al. Also found that the acinar cell metabolism was more active 3 days after the denervation branch; after 1 week, the cells became smaller and the active function disappeared. Clinically, the presence of a temporary lacrimal period after surgery is helpful to determine the blood supply of the transplanted gland, and it is one of the signs of the survival of the transplanted gland.
During the dormant period, due to the low secretion function of the transplanted glands, and the secretions are relatively viscous, if no active measures are taken to promote the secretion of the glands, clogging of the catheter is prone to occur. This is our main purpose of studying how to take measures to strengthen glandular secretion, promote glandular function recovery, and shorten the dormant period. The literature reports that after denervation of the transplanted glands, the local blood supply of the glands is an important factor affecting the amount and quality of glandular secretion. Based on this, in this study, measures such as local hot compress # massage # infrared physiotherapy and pepper stimulation were used to promote the functional recovery of the transplanted glands and achieve good results.