<prompt> Waldeyers ring consists of all of the following exceptPalatine tonsilsPharyngeal tonsilsTubal tonsilsPosterior Auricular nodes  <response>: Lymphoid tissue aggregated at places in the subepithelial layer of the pharynx is collectively called Waldeyers ring. It is formed by 1. Nasopharyngeal tonsil or adenoids 2. Palatine tonsils 3. Lingual tonsil 4. Tubal tonsil In fossa of Rosenmuller 5. Lateral pharyngeal bands 6. Nodules in posterior pharyngeal wall 