1. Practice 9

2. Medulla Cortex Capsule No.88 Thymus ( new-born child HE staining ×4 )

3. Medulla Cortex connective tissue No.88 Thymus ( new-born child HE staining ×10 )

4. Epithelial reticular cell Thymic corpuscle thymocyte No.88 Thymus ( new-born child HE staining ×40 )

5. hilum Cortex Medulla No.36 lymph node ( dog lymph node HE ×4 )

6. Inner cortex Outer cortex Capsule medulla Lymphoid nodule Medullary cord trabecula Subcapsular sinuses No.36 lymph node ( dog lymph node HE ×10 )

7. Germinal center cap Dark zone Light zone No.36 lymph node ( dog lymph node HE ×40 )

8. Medullary cord Medullary sinus Endothelial cell macrophages No.36 lymph node ( dog lymph node HE ×40 )

9. Capsule Red pulp Trabecula White pulp Red pulp Trabecula White pulp No.37 Spleen ( Human spleen HE staining ×4 )

10. Splenic corpuscle Peri-arterial lymphatic sheath No.37 Spleen ( Human spleen HE staining ×40 )

11. Splenic cord Splenic sinus No.37 Spleen ( Human spleen HE staining ×40 )

12. Practise lab:draw a picture of lymph node Thank U