Final answer:
Salivary glands, which produce saliva, are located both within and outside the oral mucosa. The three major pairs of salivary glands are the parotid glands, sublingual glands, and submandibular glands.
Step-by-step explanation:
The salivary glands, which produce saliva, are located both within and outside the oral mucosa. The major salivary glands are located outside the oral mucosa, while many small salivary glands are housed within the mucous membranes of the mouth and tongue.
The three major pairs of salivary glands are the parotid glands, sublingual glands, and submandibular glands.