IgA Immunity: IgA is the main antibody found in mucosal surfaces like the respiratory and digestive tracts, playing a key role in neutralizing pathogens and preventing their entry into the body.
Location and History of Tonsils: Tonsils are lymphoid tissues located in the oropharynx and nasopharynx; they help defend against inhaled or ingested pathogens and are commonly removed in cases of chronic infection.
The Location Structure and Histology of the Thymus: The thymus is located in the anterior mediastinum, made of lobules containing cortex and medulla, and supports T cell maturation, especially in childhood.
Primary and Secondary Antibody Respons new: The primary antibody response is slower and produces IgM first, while the secondary response is faster and stronger, dominated by IgG due to memory B cell activation.
