MindMap Gallery immune organs and tissues
Immunology - Immune organs and tissues, which introduces knowledge about the structure and function of the thymus, bone marrow, lymph nodes, spleen, and mucosa-associated lymphoid tissue. I hope this brain map will be helpful to you.
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This is a mind map about bacteria, and its main contents include: overview, morphology, types, structure, reproduction, distribution, application, and expansion. The summary is comprehensive and meticulous, suitable as review materials.
This is a mind map about plant asexual reproduction, and its main contents include: concept, spore reproduction, vegetative reproduction, tissue culture, and buds. The summary is comprehensive and meticulous, suitable as review materials.
This is a mind map about the reproductive development of animals, and its main contents include: insects, frogs, birds, sexual reproduction, and asexual reproduction. The summary is comprehensive and meticulous, suitable as review materials.
immune organs and tissues
central immune organ
Thymus
structure
Hematopoietic induction microenvironment: Stromal cells and the hematopoietic growth factors they secrete together with the extracellular matrix constitute the environment in which hematopoietic stem cells survive.
Function
Where blood cells and immune cells occur
B cell maturation site
Immune response produces antibodies again
marrow
structure
cortex
shallow cortex
Thymic nurse cells (surrounding thymocytes)
deep cortex
Thymocytes (immature T cells)
medulla
The presence of thymic corpuscles (Hassle's corpuscles) is an important feature and disappears during inflammation
Function
T cell differentiation and maturation
Immunomodulatory effect
Develop immune tolerance to self-antigens
Microenvironment (regulating T cell proliferation and differentiation)
Thymic epithelial cells
Secretes cytokines and thymosin molecules
cell-to-cell contact
extracellular matrix
Peripheral immune organs and tissues
Lymph nodes
structure
cortical area
Superficial cortical area
Not stimulated
Primary lymphoid follicles (large collections of B cells)
stimulated by antigen
secondary lymphoid follicles
deep cortical area
Contains many high endothelial venules
medullary region
medullary cord
B cells
Plasma cell
medullary sinus
Macrophages
Function
Place where T cells and B cells colonize
site of immune response
Participate in lymphatic recirculation
filtering effect
spleen
structure
white marrow
periarterial lymphatic sheath
Contains dense T cells
lymph nodes
Contains large numbers of B cells
Red pith
Function
The place where T cells and B cells settle
Where the immune response occurs
Synthetic bioactive substances
filtering effect
mucosa-associated lymphoid tissue
composition
gut-associated lymphoid tissue
nasal associated lymphoid tissue
bronchial associated lymphoid tissue
Function
Participate in perimucosal immune response
secretory Iga
Lymphocyte homing and recycling
Homing
Mature lymphocytes leave central immune organs and settle in peripheral immune organs
Recycle
significance
Properly distribute immune cells in peripheral immune organs and tissues
Continuously replenish lymphocytes in lymphoid tissues and organs and enhance immune function
Increase the contact between lymph and antigens
Make all immune organs a whole
way
Lymph nodes
spleen
organize