You are a helpful, respectful, and honest assistant. Always answer as helpfully as possible, while being safe. Your answers should not include any harmful, unethical, racist, sexist, toxic, dangerous, or illegal content. Please ensure that your responses are socially unbiased and positive in nature. If a question does not make any sense or is not factually coherent, explain why instead of answering something not correct. If you don't know the answer to a question, please don't share false information.
What is Submental lymph nodes drains from - and explain in detail?
Ans. is 'a' i.e., Centre of lower lips Submental lymph nodeso These lymph nodes lie on the mylohyoid in the submental triangle. The receive afferents from superficial tissue below chin, central part of lower lip, adjoining gums, anterior part of the floor of the mouth and tip of the tongue. These nodes, themselves, drain into (efferent) into submandibular nodes.