EPIPHYSIS (end)
(a), EPIPHYSIAL LINE (a) - purple
The epiphysis is the end of a long bone. Externally it has a thin layer
of compact bone, while internally the bone is cancellous. The Epiphysis
is capped with articular cartilage.
DIAPHYSIS
(shaft) (b)
The diaphysis is the shaft of the long bone. It has compact bone with
a central cavity.
ARTICULAR CARTILAGE
(c) - green
The articular cartilage is found on the ends of long bones. It is smooth,
slippery, and bloodless.
PERIOSTEUM
(d) - dark blue
Periosteum is a fibrous, vascular, sensitive life support covering for
bone. It provides nutrient-rich blood for bone cells and is a source of
bone-developing cells during growth or after a fracture.CANCELLOUS
(spongy) BONE (e) and MARROW (e) - light blue
The cancellous bone appears as tiny beams of bone arranged like a lattice.
Red marrow packs the spaces between beams.
COMPACT BONE
(f) - pink
The compact bone is a dense bone found in the diaphysis. Its repeated
pattern is arranged in concentric layers of solid bone tissue.
MEDULLARY CAVITY
(g), YELLOW MARROW (g) - yellow
The medullar cavity of the diaphysis serves to lighten bone weight and
provide space for its marrow.
NUTRIENT ARTERY
(h) - red
Each long bone contains a tunnel in its shaft for the passage of a nutrient
artery, which supplies the shaft.
1. Where do you find yellow marrow? __________________________
2. What type of bone is arranged in concentric layers? ______________________
3. Where do you find red marrow? ___________________________
4. What is the end of the bone called? _______________________________
5. Spongy bone is also called ____________________ bone.
Name ________________________
