The submandibular gland is one of the major salivary glands located beneath the jaw, specifically in the submandibular triangle. It plays a crucial role in producing saliva, which aids in digestion and helps keep the mouth moist. The gland is responsible for secreting both serous (watery) and mucous (thicker) saliva, contributing to the overall function of the salivary system. This gland is innervated by the facial nerve and is involved in the process of swallowing and tasting food. It is also important for oral health, as saliva helps to neutralize acids and wash away food particles, reducing the risk of dental issues.