《组织学与胚胎学 Histology and Embryology》课程PPT教学课件讲稿（双语版）Immune system

Immune/system

Immune system

eral outline Lymphatic organs: thymus, lymph node, spleen tonsil Lymphoid tissue T:Th、Ts、Tc B Lymphocyte K Cells NK Macrophage

General outline Lymphatic organs: thymus, lymph node, Lymphoid tissue Lymphocyte T：Th、Ts、Tc B K NK Macrophage Cells spleen, tonsil

lymphoid tissue. consists of reticular tissue, macrophage, plasma cell and lymphocyte diffuse L.T. no border, predominant T cell postcapillary venules (P c v) lymphoid nodules: clear border, predominant B cells Primary Secondary

Lymphoid tissue: ▪ consists of reticular tissue, macrophage, plasma cell and lymphocyte diffuse L.T.: no border, predominant T cell , postcapillary venules (P.C.V.) lymphoid nodules: clear border, predominant B cells Primary ~ Secondary ~ Ag

lymphoid tissue

lymphoid tissue

hoid organs Central lymphoid organs Thymus: the generation place of Tc Bone marrow: the generation place of Bc Peripheral lymphoid organs Contain lymph node, spleen, tonsil The places to proceed immune reactions

Lymphoid organs ▪ Central lymphoid organs Thymus: the generation place of Tc Bone marrow: the generation place of Bc ▪ Peripheral lymphoid organs Contain lymph node, spleen, tonsil The places to proceed immune reactions

chymus Structure Capsule(CT,)-interlobular septa Endothelial reticular cel(erC) a Cortex: Lymphocyte: thymocyte Macrophage: secrete IL-1 ERC Lc, few a Medullas Macrophage: secrete IL-1 t Thymic corpuscles

Thymus ▪ Capsule ( C.T.) interlobular septa ▪ Cortex: Endothelial reticular cell (ERC) Lymphocyte: thymocyte Macrophage: secrete IL-1 ▪ Medulla: ERC Lc: few Macrophage: secrete IL-1 Thymic corpuscles Structure:

Thymus

Thymus

The cortex of thymus

The cortex of thymus