What does antigen specificity mean for an adaptive lymphocyte receptor?

An adaptive lymphocyte receptor recognizes a particular antigenic target or epitope rather than reacting identically to every possible antigen.

Long-lived antigen-specific lymphocytes contribute to immunological {{c1::memory}} after a prior adaptive response.

What happens during clonal expansion of an antigen-selected lymphocyte?

An activated antigen-specific lymphocyte proliferates, producing many related cells with the same original antigen-recognition specificity.

An epitope is the particular region of an antigen recognized by an antibody or antigen receptor; T-cell recognition involves peptide presented by MHC.

Which molecules and cells are central to humoral adaptive immunity?

B cells and their antibody-secreting plasma-cell descendants produce antibodies that act in extracellular fluids.

Flashcard deck

Immunology — Flashcards

Immunology50 cardsBeginnerEnglish

A flashcard deck with 50 cards in immunology, made by Prognia.

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50 flashcards: 7 cloze, 10 term-definition, 21 classic-qa, 5 compare-contrast, 7 concept-explanation. Introductory immunology practice contains 50 flashcards and 50 quizzes across innate barriers and phagocytes, inflammatory signals, adaptive specificity and memory, B-cell and antibody mechanisms, conventional T-cell antigen recognition and tolerance, complement, classic hypersensitivity mechanisms, introductory immunodeficiency distinctions, and active versus passive immunity and vaccine memory priming. Source evidence, concept links and 25 covered learning objectives support focused question-level feedback and recommendations. This initial set explains stable basic mechanisms; it does not claim complete clinical immunology, exhaustive complement pathways, national immunization schedules or comprehensive medical-school curriculum alignment.