The submandibular gland is one of the salivary glands, responsible for producing saliva. It lies inferior to the mylohyoid muscles and superior to the digastric muscle. Parasympathetic innervation of the submandibular gland is from the salivary nucleus via the facial nerve with synapses in the submandibular ganglion. The salivary glands produce saliva, which keeps the mouth and other parts of the digestive system moist. ... Contents of Saliva In animals, saliva is produced in and secreted from the salivary glands. ... The Mylohyoid muscle, flat and triangular, is situated immediately above the anterior belly of the Digastricus, and forms, with its fellow of the opposite side, a muscular floor for the cavity of the mouth. ... The digastric muscle (named digastric as it has two bellies) is a small muscle located under the jaw. ... The facial nerve is seventh of twelve paired cranial nerves. ...
The Submandibular Gland contians two types of cells, serous cell and mucous cells. Serous cells produce salivary amylase which aids in the break down of starchs in the mouth. Mucous cells secrete mucin which aids in the lubrication of the food bolus as it travels throught esophogus. Together these two types of cells secretions make up saliva which is ecreted into ducts called 'Warton's Ducts'. These ducts open into two papillae on either side of the lingual frenulum. α-Amylase Amylase (EC 3. ...
The submandibular gland accounts for 8 out of 10 of all salivary duct calculi, possibly due to the different nature of the saliva that it produces and that it's duct is up-sloping. Salivary duct calculus is a concretion of mostly calcium mineral salts (calculus) that forms within the ducts. ...
The innervation of the gland from the submandibular ganglion is similar to that of the submandibulargland.
The submandibular ganglion lies on the lateral surface of the hyoglossus muscle, medial to the mylohyoid muscle, superior to the submandibular duct and hypoglossal nerve, and inferior to the lingual nerve, from which it is suspended by several branches.
The lingual nerve, the deep process of the submandibulargland and the submandibular duct, and the hypoglossal nerve pass deep to the posterior border of the mylohyoid.
Because the glands are branched, and because the tubules forming the branches contain secretory cells, submandibularglands are classified as branched tubuloacinar glands.
Further, because the secretory cells are of both serous and mucous types, the submandibulargland is a mixed gland, though it is mostly serous.
The submandibulargland accounts for 80% of all salivary duct calculi, possibly due to the different nature of the saliva that it produces and that its duct is up-sloping.
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