Waldeyer's tonsillar ring

The lymphatic pharyngeal ring or Waldeyersche tonsillar ring is a group of lymphoepithelialem tissue, which is localized in mammals at the transition from the oral cavity and the pharynx, nose and the lower airways. The term " ring " is only to be understood in a figurative sense, as it is actually about individual Gewebsinseln, the almonds are. The lymphatic pharyngeal ring serves primarily as a defense barrier of the upper respiratory tract against a possible invasion by bacteria, viruses and fungi from the oral and nasal cavity.

The Waldeyersche throat ring consists of:

• Pharyngeal tonsil ( adenoids )
• Tonsilla tubaria (tubes almond )
• Palatine tonsils ( tonsillitis )
• Lingual tonsil ( tongue Almond )
• Tonsilla veli palatine ( soft palate tonsil, not humans )
• Tonsilla paraepiglottica ( epiglottis almond, not humans )

The naming of this ring was revenge after the German anatomist Heinrich Wilhelm Waldeyer (1836-1921), who first described it.