Throat Lungs Diaphragm 11. It is a thin skeletal muscle that sits at the base of the chest and separates the abdomen from the chest. 14 These are pair of spongy air filled organs located on either side of the chest or thorax. it is the part where the air we inhale enters and carries out the air that we exhale. 32. it serves as the passageway of air between the pharynx and above the trachea below. 15. it is a hollow cavity that allows food and air to enter the body. Nose Mouth​