1. Thymus Palatine tonsile Lymph node Spleen
IMUNE SYSTEM
Thymus
Palatine tonsile
Lymph node
Spleen

2. Thymus
Lobule
Interlobular septum

3. Thymus
Interlobular septum
medulla
cortex
capsule

4. Thymus
cortex
Hassal’s bodies
medulla

5. Thymus- Hassal’s bodies

6. l.epithelialis mucosae
Palatine tonsils
l.epithelialis mucosae
l.propria mucosae
small salivary glands
lymph follicle

7. invagination of epithelium
Palatine tonsils
invagination of epithelium
lymph follicles

8. Lymph node (gl.lymphacea )

9. Lymph node(gl.lymphacea)
septa
capsule
cortex

10. Lymph node - marginal sinus
marginal sinuses

11. lymph follicle with germinative center (GC)
Lymph node - cortex
lymph follicle with germinative center (GC) GC GC GC

12. Lymph node– l. follicle
Macrophage in GC

13. Lymph node(gl.lymphacea ) - medulla
medular sinuses

14. SPLEEN
capsule

15. SPLEEN
septa

16. SPLEEN
RED pulp
WHITE
pulp

17. SPLEEN
a.centrofollicularis