The picture shows the anatomy of the human throat. The brain, which is responsible for controlling the body's functions, is located at the top of the throat. The throat is a vital part of the digestive system, as it is the passageway for food and drink to travel from the mouth to the stomach. The trachea, which is a tube that carries air to the lungs, is also located in the throat. The throat is protected by the epiglottis, a small flap of tissue that prevents food and drink from entering the trachea.