The term "submandibular" refers to the area located beneath the mandible, which is the lower jawbone in humans. This region is significant in anatomy and dentistry, as it houses important structures such as the submandibular gland, a major salivary gland responsible for producing saliva. In addition to the gland, the submandibular area contains various blood vessels and nerves that play crucial roles in oral and facial functions. Conditions affecting this region can lead to issues like sialadenitis, an inflammation of the salivary glands, or submandibular lymphadenopathy, which involves swollen lymph nodes.