1. The
Lymphatic
System

2. Functions of the Lymphatic System
Drainage system
Lipid Absorption from Small Intestine
Produce & circulates Immune cells.

3. Open ended vessels – open when excessive fluid

5. Valves in lymphatic vessels prevent backflow of lymph.

8. Right Lymphatic and Thoracic duct

10. Un-encapsulated lymphatic tissues
Lymphoid Tissues:
Un-encapsulated lymphatic tissues
Tonsils
Pharyngeal
Palatine
Lingual
Tonsil located in strategic locations

11. Lymphoid Tissues Tonsils

12. Lymphoid Organs
Lymph Nodes
Thymus
Spleen

13. Lymph Node

14. Structure of a Lymph Node

15. Development of Lymphocytes

16. Lymph Node Histology

17. Lymph Node Histology2

18. The Thymus

19. The Thymus Behind the sternum (in anterior mediastinum)
Where T cells Differentiate
Involution (gets smaller) post puberty

20. The Spleen

21. The Spleen Largest mass of lymphoid tissue in body
Same functions for whole blood as lymph nodes for lymph

22. The Spleen - histology