Figure bone structure

a - epiphysis
(Bone end)
b - metaphysis
(active growth zone)
c - diaphysis
(Bone shaft)

1. Sponge-like built
   Bone with red
   Bone marrow -
   Spongiosa substantia
   + Medulla ossium rubra
2. Epiphyseal line -
   Epiphysial line
3. Dense (compact) bone -
   Substantia compacta
4. Medullary cavity with yellow
   Bone marrow -
   Cavitas medullaris
   + Medulla ossium flava
5. Bony artery -
   Nutrician artery
6. Periosteum -
   Periosteum
7. Osteon (basic functional unit) -
   Osteonum
8. Spaces filled with bone marrow
   between the trabeculae -
   Medulla ossium
9. Growth plate -
   Lamina epiphysialis

You can find an overview of all Dr-Gumpert images at: medical illustrations

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Bone overview