Final Answer:
Nasopharyngeal lymph tissue is Tonsils, so the correct option is d. Tonsils
Step-by-step explanation:
The nasopharyngeal lymph tissue, also known as Waldeyer's ring, includes the adenoids and tonsils. Among the options provided, the correct answer is "d. Tonsils."
The tonsils are clusters of lymphoid tissue located in the throat, specifically the nasopharynx, and play a crucial role in the immune system. They act as a first line of defense against pathogens entering through the oral and nasal passages.
The tonsils consist of the pharyngeal tonsil (located in the nasopharynx), palatine tonsils (found on the sides of the throat), and lingual tonsil (situated at the base of the tongue).
These structures collectively contribute to the body's immune response by trapping and filtering potentially harmful microorganisms, such as bacteria and viruses, that enter the respiratory and digestive tracts.
Functioning as part of the lymphatic system, the tonsils produce antibodies and help activate immune responses against pathogens.
While the other options listed—spleen, thymus, bone marrow, and adenoids—are important components of the immune system, they are not specifically associated with the nasopharyngeal lymph tissue.
Therefore, the correct identification of the nasopharyngeal lymph tissue in this context is the tonsils.
Nasopharyngeal lymph tissue is Tonsils, so the correct option is d. Tonsils