lungs, thymus, larinx, thyroid gland

adult anatomical anatomy biology blood body bone breath bronchial cartilage chart cross diagram endocrine epiglottis gland health healthy heart hormone human hyperthyroidism hypothalamus hypothyroidism icon illustration iodine isolated larynx lung medical medicine membrane neck object organ pericardium pharynx section smoke surgery system thymus thyroid trachea transplant transplantation treat