lymphatic

L - Lumen

LN - Lymphatic Nodules

ME - Muscularis Externa

PP - Peyer's patches

S - Serosa

SM - Submucosa

V - Villi

Inset - 40x view of lymph node

Total Magnification: 100x

Palatine Tonsil

Total Magnification: 40x

Objective Magnification: 4x

GC: Germinal Center

SE: Surface Epithelium 

LN: Lymphatic Nodule