File talk:Lymphatic-system-tonsil.jpg
From Embryology
The tonsils form part of a circular band of adenoid tissue which guards the opening into the digestive and respiratory tubes.
Ring of Adenoid Tissue
- anterior part - lingual tonsil formed by the submucous adenoid collections.
- lateral parts - palatine tonsils and adenoid collections near the auditory tubes.
- posterior part - pharyngeal tonsil on the posterior wall of the pharynx.
- between main masses are smaller collections of adenoid tissue.
Palatine Tonsils - (tonsillæ palatinæ tonsil) are two prominent masses situated one on either side between the glossopalatine and pharyngopalatine arches.
