Anatomy, Lymphatic System - StatPearls - NCBI Bookshelf
2023年3月6日 · Components of the lymphatic system include lymph, lymphatic vessels and plexuses, lymph nodes, lymphatic cells, and a variety of lymphoid organs. The pattern and form of lymphatic channels are more variable and complex but generally parallel those of the peripheral vascular system.
Lymphocytes and the Cellular Basis of Adaptive Immunity
The clonal selection theory provides a useful conceptual framework for understanding the cellular basis of immunological memory. In an adult animal, the peripheral lymphoid organs contain a mixture of cells in at least three stages of maturation: naïve cells, effector cells and memory cells.
Lymphoid tissue | Definition, Components, & Function | Britannica
2024年8月21日 · lymphoid tissue, cells and organs that make up the lymphatic system, such as white blood cells (leukocytes), bone marrow, and the thymus, spleen, and lymph nodes. Lymphoid tissue has several different structural organizations related to …
The components of the immune system - Immunobiology - NCBI …
There are two major types of lymphocyte: B lymphocytes or B cells, which when activated differentiate into plasma cells that secrete antibodies; and T lymphocytes or T cells, of which there are two main classes.
19.3A: Lymphoid Cells - Medicine LibreTexts
Lymphocytes develop from lymphoblasts (differentiated blood stem cells) within lymphoid tissue in organs such as the thymus. Lymphocytes are vital for normal immune system function. The three major types of lymphocyte are T cells, B cells, and natural killer cells.
The biology of innate lymphoid cells - Nature
2015年1月14日 · Group 1, group 2 and group 3 innate lymphoid cells (ILCs) are defined by differential expression of cell-surface markers, transcription factors and patterns of expression of effector cytokines.
Lymphocyte - Wikipedia
Lymphocytes include T cells (for cell-mediated and cytotoxic adaptive immunity), B cells (for humoral, antibody-driven adaptive immunity), [2] [3] and innate lymphoid cells (ILCs; "innate T cell-like" cells involved in mucosal immunity and homeostasis), of which natural killer cells are an important subtype (which functions in cell-mediated ...
Innate Lymphoid Cells: 10 Years On - Cell Press
Innate lymphoid cells (ILCs) are lymphocytes that do not express the type of diversified antigen receptors expressed on T cells and B cells. ILCs are largely tissue-resident cells and are deeply integrated into the fabric of tissues.
Innate lymphoid cells: A new paradigm in immunology
2015年5月22日 · Innate lymphoid cells (ILCs) are a growing family of immune cells that mirror the phenotypes and functions of T cells. However, in contrast to T cells, ILCs do not express acquired antigen receptors or undergo clonal selection and expansion when stimulated.
Lymphocytes: Function, Definition, Levels & Ranges - Cleveland Clinic
2022年6月20日 · Lymphocytes are a type of white blood cell. They help your body’s immune system fight cancer and foreign viruses and bacteria. Your lymphocyte count can be taken during a normal blood test at your healthcare provider’s office. Lymphocyte levels vary depending on your age, race, sex, altitude and lifestyle.