1. Lymphatic System

2. Thymus- immune booster

3. Thymus Slide ThymusThymic medulla Medulla CortexThymic Corpuscle

4. Spleen, Tonsil, and Lymph node

5. Spleen-blood filter

6. Spleen Central Artery Splenic nodule Germinal Center

7. Palatine tonsil- 1 st line of defense in the oral area

8. Tonsil Oral Mucosa Lymphatic nodule Germinal Center

9. Lymph Node- Lymph filter

10. Lymph Node Capsule Lymphatic nodule Medulla of the lymph node Cortex of the lymph node

11. Spleen Inguinal Lymph Nodes Lymphatic collecting Vessels Lymphatic System

12. Axillary Lymph Nodes Lymphatic collecting Vessels