1. Fig. 22.1(TE Art) Spleen Thymus Thoracic duct Lymphatic vessels Palatine tonsil Bone marrow Lymph nodes Functions of the lymph system 1.Fluid recovery 2.Immunity 3.Lipid absorption

2. Fig. 22.3(TE Art) Tissue fluid Endothelial cell Anchoring filament Lymph Lymphatic capillary Lymphatic duct Tissue fluid Edema

3. Larger lymph vessels…. 1.Have valves 2.Have tunica interna, media and externa

4. Lymphatic trunks Collecting ducts Lymph node Collecting vessel Lymphatic capillaries

5. Fig. 22.6(TE Art) L. subclavian v. Thoracic duct Cisterna chyli Drainage of right Lymphatic duct R. subclavian v. R. lymphatic duct Superior vena cava Drainage of thoracic duct (left lymphatic duct)

6. Fig. 22.1(TE Art) Spleen Thymus Thoracic duct Lymphatic vessels Palatine tonsil Bone marrow Lymph nodes Lymphatic tissues Diffuse lymphatic tissue: Mucosa-assoc.-lymphatic tissue (MALT) Lymph nodules Lymphatic organs Red bone marrow Thymus Lymph nodes Tonsils Spleen

8. Fig. 22.1(TE Art) Spleen Thymus Thoracic duct Lymphatic vessels Palatine tonsil Bone marrow Lymph nodes

9. Fig. 22.12a(TE Art) Lymphatic nodule Capsule Efferent lymphatic vessel Afferent lymphatic vessel Trabecula Lymph node

10. Lymph nodes

11. Inguinal lymph nodes Cervical lymph nodes Axillary lymph nodes

13. Axillary nodes metastasis

15. Fig. 22.1(TE Art) Spleen Thymus Thoracic duct Lymphatic vessels Palatine tonsil Bone marrow Lymph nodes

16. Fig. 22.14a(TE Art) Pharyngeal tonsil Palate Palatine tonsil Lingual tonsil

17. Fig. 22.1(TE Art) Spleen Thymus Understand basic functions & location

18. Remember…..