LYMPHATIC SYSTEM

LYMPH NODE A: Medulla B: Cortex C: Lymph nodules D: Germinal center D A B C

A B

A B C D

GERMINAL CENTER A B A: Cortex of lymph nodule B: Germinal center

A

PEYER’S PATCH A B C D A: Mucosa of the ileum. B: Submucosa C: Peyer’s Patches D: Germinal center.

APPENDIX A B C C D D A: Invagination of the mucosa. B: Simple columnar epithelium. C: Lymphatic Nodule D: Germinal Center

SPLEEN A D B A A C A: White pulp B: Red pulp C: Trabecula D: Germinal Center.

A C B C

THYMUS A B C D E A: Cortex B: Medulla. C: Lobules of the thymus. D: Interlobular septa E: Hassall’s corpuscle.

A B B C

A B C

TONSIL A B C A: Lymph Nodule B: Germinal center C: Stratified squamous epithelium

A B

LYMPHATIC VESSEL AB A: Lymphatic vessels are lined with endothelium which is simple squamous epithelium. B: Lymphatic valve