Question

Select the definition of the term adenoid

A) single mass of lymphoid tissue in the midline at the back of the throat
B) region of the pharynx below the epiglottis
C) air tube from the back of he nose to the larynx

Answer 1

An adenoid is a single mass of lymphoid tissue located at the superior portion of the nasopharynx, which traps and destroys pathogens during inhalation. The correct option is A).

Step-by-step explanation:

The term adenoid refers to a single mass of lymphoid tissue located in the midline at the back of the throat, more specifically, at the superior portion of the nasopharynx.

This mass of tissue is also known as the pharyngeal tonsil. The adenoids contain a rich supply of lymphocytes and are covered with ciliated epithelium that helps trap and destroy invading pathogens during inhalation.

In children, adenoids are usually larger and play a role in the immune response, but they regress with age and can even disappear. Option A) is the correct one.