Both humans and mice possess three pairs of major salivary glands (the parotid, sublingual, and submandibular glands), as well as hundreds of minor salivary glands (not illustrated due to space constraints). Each major gland empties its contents into a specific duct that terminates within the oral cavity. The major salivary glands also receive blood and neuronal signals from complex networks of vessels and nerves; however, only parasympathetic innervation is depicted (again, in the interest of space). Shown are nerves (yellow), arteries and veins (red and blue respectively), ducts (green). Both frontal and side view are shown.