The Submandibular Gland

The submandibular gland is the second largest salivary gland in the body.  The other major salivary glands are the parotid (in front of and below the ear) and the sublingual (under the tongue).  These glands are paired i.e. there is one on each side.  Also there are numerous minor glands in the lining of the mouth and throat. 

Size and location

The submandibular gland is situated under the jaw and weighs about 5g.  It is soft and contributes to the contour of the neck below the jaw-line. 

Function

The submandibular gland excretes saliva into a duct that empties into the mouth under the tongue.  Saliva lubricates the mouth and throat, protects the teeth, has antibacterial properties and helps to digest food.