PNB 2264 Lecture Notes - Lecture 5: Medullary Cavity, Connective Tissue, Hematoma
16 Aug 2018
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This process works in one of two ways. Epiphyseal plate: new cartilage replacement by appositional bone, similar to endochondral ossification. Bones are made by one of two processes: require right cells and signals. Osteoblasts produce type 1 collagen (10% of mas) in layers. Both io and eo produce the same types of bones: compact or lamellar. Why are there different bone types: because they are asked to do very different things. Spongy bones on the inside, spongy on the inside. Lamellar: looks like tree, rings, osteons, compact, dense and very strong, osteons are the clumps of rings. Long bones longer than wide: humorous, femur, tibia, fibula etc. Short bones same length and width: wrist bones, ankle bones. Flat bones flat and curved: skull bones. Kinda like cardboard: material in the middle sandwiches between two hard surfaces. Outer surface is the periosteum, inner and outer membrane: contiguous with the outer covering of tendons.
