Which is/are not part of adaptive immunity? a. phagocytic cells b. antigen-presenting cells c. M

step 1 which is or are not part of adaptive immunity. We have phagocytic cells, antigen presenting cell

Which is/are not part of adaptive immunity? a. phagocytic...

Key Concepts

Antibodies

These are proteins produced by B-cells that specifically bind to antigens. They are a hallmark of the adaptive immune response, facilitating targeted pathogen neutralization and clearance.

Antigen Receptors

Found on lymphocytes, these receptors (such as T-cell receptors and B-cell receptors/antibodies) are antigen-specific molecular structures that are central to adaptive immunity, allowing precise recognition of pathogens.

Cytokines

Small signaling proteins that modulate the balance and activities of the immune response. While they are produced by both innate and adaptive immune cells, they play a critical role in the regulation and mediation of immune reactions.

Complement Activation

This refers to a series of plasma protein cascades activated as part of the immune response. Primarily considered a feature of innate immunity, it also interacts with and enhances the effects of the adaptive immune response.

Phagocytic Cells

These cells, such as macrophages and neutrophils, are essential components of innate immunity. They perform non-specific engulfing and destroying of pathogens, playing a critical role in the early stages of the immune response.

Antigen-Presenting Cells

These are specialized cells that process and present antigen fragments to lymphocytes, particularly T-cells, thereby linking innate and adaptive immunity through the initiation of a specific immune response.

MHC Markers

Major Histocompatibility Complex markers are cell-surface proteins that present peptide fragments to T-cells. They are crucial for the adaptive immune response by enabling the discrimination between self and non-self antigens.

Innate Immunity

This represents the immediate, non-specific defense mechanism against pathogens. It includes cellular responses like those from phagocytic cells, and mechanisms like the complement activation pathway, providing a rapid response and bridging to adaptive immunity.

Adaptive Immunity

This is an antigen-specific immune response that involves lymphocytes such as B-cells and T-cells. It is characterized by clonal expansion, immunological memory, and the generation of antibodies and specialized antigen receptors, all tailored to target specific pathogens.

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