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25 Cards in this Set

  • Front
  • Back
-Bone shape
-ex. femur


Long Bone
-enlarged two ends of bone
-thick spongy bone
-strengthens joint and provides for tendon/ligament attachment


Epiphysis
-Horizontally oriented tubes that branch off from the Haversion canal


Volkmann Canal
calcium
vitamins A and D
hormones
physical stress


Factors regulating growth
-Growth Process
- Replacement of preexiting tissues with bone


Ossification
Major structural unit of compact bone.
-Contains cylindrical layers of osseous tissue(LAmellae)


Osteons
-Short region between diaphysis and epiphysis


Metaphysis
1/3 organic (proteins, lipids, cells)-osteocytes, collagen fibers.

2/3 Matrix(hydroxyapatite)


Bone Composition
Bone growth process
-deposition of calcium salts in tissue, fills in matrix around lacunae


Calcification
Osteon cement


Calcium
_Bone tissue type
-Open network of branching plates called trabeculae
- forms middle regions of bone
-lacks osteons


Spongy Bone
1-chondrocytes make carilage
2)calcium phosphate adds to matrix
3)cartilage cells organize into osteons
4)cartilage cells convert into osteocytes
5)bone tissue formed


Process of bone elongation
bone shape
Vertabrae


Irregular bone
bone shape
-cranial


Flat bone
- bone shape

-carpals(wrist)


Short bone
-Bone tissue type

-Adipose and connective tissue cells


Marrow
-Outer membrane covering entire bone


Periosteum
-center of diaphysis contains bone marraw and many vessels


Medullary cavity
-Bone tissue type

-Dense arrangement of osteons

-Forms outer regions of bone


Compact(Hard Bone)
-The shaft connecting epiphysies


Diaphysis
-Membrane between medullary cavity and diaphysis


Endosteum
-Small cavities aligned along each lamellae that house the osteocytes.
(Compact Bone)


Lacunae
-Center of osteon, vertically oriented, forms passageway for blood vessel


Haversion Canal
-Interface between epiphysis and metaphysis
-site of bone elongation


Epiphyseal plate
Support
protection
locomotion
mineral storage
blood cell formation


Functions of skeletal system