skeletal system. function of skeletal system function of the skeletal system a.protection b.movement...
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Skeletal System
Skeletal System
Function of Skeletal System
Function of the Skeletal System
A. Protection
B. Movement
C. Support
D. Blood cell formation (hematopoiesis)
E. Storage (fat and minerals)
Structure of the Skeletal System
Axial Appendicular
http://www.zoology.ubc.ca/~biomania/tutorial/bonesk/outline.htm
The Structure of Bone:Compact Bone & Spongy Bone
Compact bone• Forms outer part of bones• Bears weight
Spongy bone• Made of trabeculae
(latticework) • Located inside bones• Reduces weight of bone
Spongy or Compact?
4 Types of Bone Shapes
• Long bones
• Short bones
• Flat bones
• Irregular bones
Anatomy of a Long Bone
epiphysis (head)
diaphysis (shaft)
epiphysis
Bone is a Living Tissue!!!
Bone is a Living Tissue!!!
1. It is made of living cells embedded in a non-living matrix.
2. It grows, remodels and repairs.
3. It responds to hormonal stimulation.
Made of Living Cells
Osteon
Lacunae
Canniculi
Matrix- minerals
- proteins
**strength and flexibility
Bone Cells Types
• Osteoblast – bone builders – form matrix
• Osteocyte – bone maintainers – maintain matrix
• Osteoclast – bone dissolvers – destroy matrix
Bone is a Living Tissue!!!
1. It is made of living cells embedded in a non-living matrix.
2. It grows, remodels and repairs.
3. It responds to hormonal stimulation.
Menu
Menu
Bone Formation
Menu
Menu
Bone Repair
Bone is a Living Tissue!
1. It is made of living cells embedded in a non-living matrix.
2. It grows, remodels and repairs.
3. It responds to hormonal stimulation.
Bone - Review:
• Bone cells
• Matrix
• Membranes
• Ligaments
• Cartilage