Lymphatics of the head and neck

The tonsils ( ) are a set of lymphoid organs facing into the aerodigestive tract, which is known as Waldeyer's tonsillar ring and consists of the adenoid tonsil (or pharyngeal tonsil), two tubal tonsils, two palatine tonsils, and the lingual tonsils. These organs play an important role in the immune system.

The adenoid, also known as the pharyngeal tonsil, or nasopharyngeal tonsil is the superior-most of the tonsils. It is a mass of lymphoid tissue located behind the nasal cavity, in the roof and the posterior wall of the nasopharynx, where the nose blends into the throat. In children, it normally forms a soft mound in the roof and back wall of the nasopharynx, just above and behind the uvula.

tonsils located on the left and right sides at the back of the throat

tonsil by the Eustachian tube

a ringed arrangement of lymphoid tissue in the pharynx.

Lymphatic tissue in the tongue

group of lymph nodes in the neck above the clavicle bone

Lymph nodes found in the neck

organs of the immune system

organs of the immune system