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Tag Archives: immune response

Complement Cascade and Function

Posted on July 7, 2025 by anatomy
Complement Cascade and Function

Complement Cascade and Function: The complement system is a group of plasma proteins that, once activated, enhance immune responses by promoting inflammation, opsonizing pathogens for phagocytosis, and directly lysing microbial cells through the membrane attack complex.

Posted in Cells | Tagged complement system diagram, immune response, inflammation, pathogen elimination, protein activation

Antigenic Determinants

Posted on June 13, 2025 by anatomy
Antigenic Determinants

Antigenic Determinants: Antigenic determinants, or epitopes, are specific regions on an antigen that are recognized and bound by antibodies or T cell receptors, initiating an immune response.

Posted in Cells | Tagged adaptive immunity, antigen-antibody interaction, antigenic determinants diagram, epitope recognition, immune response

Four Chain Structure of a Generic Antibody IgG2 Structures

Posted on June 10, 2025 by anatomy
Four Chain Structure of a Generic Antibody IgG2 Structures

Four Chain Structure of a Generic Antibody IgG2 Structures: A generic antibody, such as IgG2, has two identical heavy chains and two light chains forming a Y-shaped structure, with variable regions for antigen binding and constant regions for immune signaling.

Posted in Cells | Tagged antibody function, antibody structure diagram, IgG2, immune response, immunoglobulin chains

Structure and Histology of a Lymph Node

Posted on April 28, 2025 by anatomy
Structure and Histology of a Lymph Node

Structure and Histology of a Lymph Node: Lymph nodes have a cortex rich in lymphocytes and a medulla containing sinuses and macrophages, acting as filters to trap pathogens and facilitate immune responses.

Posted in Anatomy | Tagged immune response, immune system anatomy, lymph node histology diagram, lymph node structure, lymphatic tissue

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