扁桃体位于消化道和呼吸道的交会处,此处的粘膜内含有大量淋巴组织,是经常接触抗原引起局部免疫应答的部位。口咽部上皮下的淋巴组织团块。在舌根、咽部周围的上皮下有好几群淋巴组织,按其位置分别称为腭扁桃体、咽扁桃体、舌扁桃体和咽鼓管扁桃体。咽扁桃体以腭扁桃体最大,通常我们所说的扁桃体就是指腭扁桃体。腭扁桃体有一对,位于舌腭弓 Tonsils located in the intersection of the digestive tract and the respiratory tract, where the mucosa contains a large number of lymphoid tissues, are often exposed to antigens cause local immune response. Oropharyngeal lymphoid tissue mass. In the base of the tongue, the pharynx around the epithelium of several groups of lymphatic tissue, according to their location known as the palatine tonsil, pharyngeal tonsils, tongue tonsils and eustachian tube tonsils. Pharyngeal tonsils to the largest tonsils, tonsils, usually we refer to the tonsil. Palate tonsils have a pair, located in the tongue palatal arch