- Tonsils are lymphoid tissues encircling the pharynx.
- These are secondary lymphoid tissues.
- They are very similar to Thymus internal structure.
- There are 3 types of tonsils palatine tonsils, lingual tonsils and pharyngeal tonsils.
- The tonsils also setup resistance to infection microbes.
- The tonsils sample the microbes in the inhaled air form suitable antibiotics.