Why do we hold adenoid & what do/did they do?

Why do we hold adenoid & what do/did they do?
Adenoids are glands or lymphoid tissue in the upper piece of the throat behind the muzzle. They're in nouns with the tonsils. Adenoids are bit of the immune system. Like all lymphoid tissue, they trap infectious agents close to viruses and germs, and they produce antibodies. Since the adenoids are located at the back of the nasal airway, they provide defense against inhaled substances. They also acquire infected if you end up near tonsillitis or strep throat & is the reason they also hold to be removed when you get a tonsillectomy.
Adenoids are a portion of your lymphatic system. Located on either side of your throat aft your nose, they function much approaching the tonsils filtering what you breathe surrounded by and trapping bacteria.
adeniods and tonsils are found contained by the back of the throat and are part of the pack of the human Lymphatic system. There main function is to "filter" bacteria/viruses from our blood.