The submandibular gland is one of the major salivary glands located beneath the jaw, or mandible. It plays a crucial role in producing saliva, which helps with digestion and keeps the mouth moist. This gland is responsible for secreting a mix of serous fluid, which contains enzymes, and mucous, which aids in lubrication. These glands are important for oral health, as saliva helps to wash away food particles and bacteria. Problems with the submandibular gland, such as blockages or infections, can lead to discomfort and difficulty in swallowing. Regular dental check-ups can help monitor the health of these glands and overall oral hygiene.