Bones
description
Transcript of Bones
Bones
Skeleton consists of 206 bones.
Subdivisions
• Axial• Appendicular
Axial Skeleton
Bones are organs composed of the following tissues:
• Bone tissue• Cartilage• Epithelial• Fibrous connective tissue• Blood connective • Nervous tissue
Shapes of Bones
Long –vs- Irregular BoneIrregular Bone
Types of Bone Growth
• Intramembranous• Skull
– Comes from primitive connective tissue cells
• Endochondral• All other
– Comes from cartilage
Endochondral Bone Growth
Endochondral
Spongy –vs-Compact
• Spongy found in the expanded end region of long bones and fills irregular space.
• Compact on outer bone and shafts of long bones.
Intramembranous Bone Growth
Bone Fractures
Broken Bone
Fractures heal more quickly:
-in young individuals
-in upper limbs as opposed to lower limbs
-in spongy bones –vs- compact bone
Bone Fracture Film
How recent?
Skull
Cervical Vertebrae
Labwork