________ are Large Lymphatic Nodules That are Located in the Walls

Question

________ are large lymphatic nodules that are located in the walls of the pharynx.
A) Tonsils
B) Peyer's patches
C) Lymph nodes
D) Immune complexes
E) Spleens

Accepted Answer

Tonsils are large lymphatic nodules that are located in the walls of the pharynx. They act as a first line of defense against inhaled or ingested pathogens. Peyer's patches are collections of lymphoid tissue in the small intestine that help in the immune response to ingested pathogens. Lymph nodes are small, bean-shaped structures located throughout the body that filter lymph fluid and contain immune cells. Immune complexes are formed when antigens and antibodies bind together in the body. Spleens are lymphoid organs located in the upper left abdomen that filter blood and contain immune cells.