Salivary glands produce saliva, which is an important part of the digestive process. Saliva lubricates food and helps with swallowing. There are three pairs of major salivary glands in the human body and they are located in the mouth, below the tongue and in the neck. The answer to the question “Which of the following is not a salivary gland?” is the thyroid gland.

The three major salivary glands are the parotid glands, submandibular glands, and sublingual glands. The parotid glands, the largest salivary glands, are located just in front of the ear. The submandibular glands are located below the tongue and the sublingual glands are located in the floor of the mouth, just under the tongue. All three of these glands secrete saliva into the mouth.

The thyroid gland, on the other hand, is not a salivary gland. The thyroid gland is located in the neck and produces hormones that regulate the metabolism and growth of the body. Although it is located near the major salivary glands, it does not produce saliva.

In conclusion, the thyroid gland is not a salivary gland. The three major salivary glands are the parotid glands, submandibular glands, and sublingual glands, which produce saliva into the mouth.