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| Metaphyseal Vessels |
enter at metaphyses
supply inner surface of epiphysis |
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bhoward86 Thu, 24 Sep 2009 23:00:24 GMT |
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| Periosteal Vessels |
small vessels
supply superficial osteons of diaphysis |
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bhoward86 Thu, 24 Sep 2009 23:00:24 GMT |
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| Nutrient artery and vein |
enters medullary cavity through diphases
nutrient foramen
proximal and distal branches
supply central (haversian) canal |
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bhoward86 Thu, 24 Sep 2009 22:59:01 GMT |
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| Bone Blood Supply |
Nutrient artery and vein
Periosteal vessels
Meaphyseal vessels |
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bhoward86 Thu, 24 Sep 2009 22:59:01 GMT |
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| Attachment |
Attach tendons, ligaments, joint structures
Fibers interwoven with periosteum and osseous tissue
STRONG bone tissue connection |
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bhoward86 Thu, 24 Sep 2009 22:59:01 GMT |
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| Associated CT |
Periosteum covers outer surface of bone
Endosteum covers inner surface of bone and contains osteoprogenitor cells, osteoblasts, and osteoclasts
Function: secures blood vessels and nerves; growth & repair; attaches surrounding CT |
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bhoward86 Thu, 24 Sep 2009 22:59:01 GMT |
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| Metaphysis |
"union"
Adults- spongy
Juveniles- hyaline cartilage (allow for growing)
Function: site of bone growth
Found: area where epiphysis and diaphysis come together |
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bhoward86 Thu, 24 Sep 2009 22:40:19 GMT |
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| Diaphysis |
AKA shaft of bone
long, slightly curved region
Mostly compact
Yellow marrow in meduallary cavity
Areolar and adipose tissue
Function: support for blood vessel and energy storage
Found: between ends |
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bhoward86 Thu, 24 Sep 2009 22:40:18 GMT |
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| Epiphysis |
AKA head of bone
Mostly spongy (thin covering of compact)
Filled with red bone marrow & blood stem cells
Function: strength and lightness
Found: ends of long bones |
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bhoward86 Thu, 24 Sep 2009 22:40:18 GMT |
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| Long Bone Structure |
Epiphyses
Diaphysis aka shaft (medullary cavity)
Metaphysis
Cortex |
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bhoward86 Thu, 24 Sep 2009 22:25:36 GMT |
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| Bone Classification |
Long bones
Flat bones
Sutural bones (not everyone has these)
Irregular bones
Short bones
Sesamoid bones (not everyone has all of these) |
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bhoward86 Thu, 24 Sep 2009 22:25:36 GMT |
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| Characteristics of Spongy Bone |
Fills ends of long bones
Resists stress in multiple directions
Trebeculae brace bones from within
Align along stress lines
"Lightens the load" |
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bhoward86 Thu, 24 Sep 2009 22:25:36 GMT |
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| Characteristics of Compact Bone |
Thickness based on physical stress
Contours shaped by external physical forces
Found on surface of ALL bones
Periosteum absent in joint
Articular cartilage (hyaline)
Osteon (parallel to long axis of shaft, and to longitudinal force) |
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bhoward86 Thu, 24 Sep 2009 22:25:36 GMT |
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| Bones Types |
Compact
Spongy |
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bhoward86 Thu, 24 Sep 2009 22:08:43 GMT |
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| 2 Divisions of Skeletal System |
Axial skeleton
Appendicular skeleton |
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bhoward86 Thu, 24 Sep 2009 22:08:43 GMT |
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| 5 Functions of Skeletal System |
Support weight
Mineral storage
Blood cell production
Protection
Leverage- movement |
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bhoward86 Thu, 24 Sep 2009 22:08:43 GMT |
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| Skeletal System |
AKA osseous tissue
~206 bones
Dynamic
Solid matrix (hydroxyapatite)
Connective Supportive Tissue |
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bhoward86 Thu, 24 Sep 2009 22:08:43 GMT |
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