adaptive immunity

Clonal Selection and Expansion of T Lymphocytes

Posted on June 12, 2025 by anatomy

Clonal Selection and Expansion of T Lymphocytes: When a T lymphocyte binds its specific antigen presented by an APC, it undergoes clonal selection and rapidly divides into effector and memory T cells, amplifying the immune response.

Primary and Secondary Antibody Respons new

Posted on May 28, 2025 by anatomy

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.