A    Section through a short bone
B    Section through a flat bone
C    Microscopic section through hyaline cartilage
D    Microscopic section through elastic cartilage
E    Microscopic section through fibrocartilage
1    Cancellous (spongy) bone
2    Compact bone
3    Chondrones
3a    Chondrocytes
3b    Cell halo
4    Intercellular substance
5    Elastic fibers
6    Collagen fibers