Intramembranous and Endochondral Ossification
Ossification (or osteogenesis) is the generic term for bone formation. There are two basic types: membranous ossification and endochondral ossification.
There are two ways bones are formed, intramembranous ossification, and endochondral ossification. Intramembranous ossification is how the flat bones are formed, while the long bones are formed with endochondral ossification.
osteoblast
endochondral ossification.
ossification
Intramembranous ossification
ossification
The femur is formed through the endochondral ossification process. This is where bone replaces the cartilage. There are six steps in this type of ossification and they are as follows; one the development of cartilage model, two the growth of the cartilage model, three the development of the primary ossification center, four the development of the medullary cavity, five the development of the secondary ossification centers, and six the formation of articular cartilage and the epiphyseal plate.
Ossification occurs when bones are formed.
Intramembranous ossification
Endochondral ossification is the type of ossification in bones that are formed in cartilage. This process involves the replacement of cartilage by bone during development and growth.
Secondary ossification centers appear in the epiphyses.