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- Good morning, students! For today's lesson, we are going to talk about the two processes of bone formation
- EndochondralOssificationvsIntramembranous Ossification
- BONE
- EndochondralOssificationvsIntramembranous Ossification
- BONE
- Is there anyone of you who knows the difference between the two?
- Me ma'am! Endochondral is important in the bone formation of long bones while Intramembranous is important in the formation of flat bones
- EndochondralOssificationvsIntramembranous Ossification
- BONE
- Very good, Ms. Garcia!Anybody else?
- EndochondralOssificationvsIntramembranous Ossification
- BONE
- Excellent, Mr. Contreras!
- Me too ma'am! In endochondral, a cartilage is formed first and the bone is laid down on it while in intramembranous, bone is directly formed on a mesenchyme
- - Replacement of fetal cartilageskeletonwith bone-Takes a longer time to formabone-Stops at year two-Indirect bone growth
- EndochondralOssificationvsIntramembranous Ossification
- - Replacement of thin connective tissue membrane (hyaline cartilage) with bone-Takes less to form a bone-Stops at year 18 in females, and 21 in males-Direct bone growth
- We will stop here and continue next meeting. Now, I will give you an assignment. Draw and label the steps of endrochondral and intramembranous ossification. That will be all. Good bye and see you next meeting!
- Okay, class. So, written on the board are the other differences between the two processes of bone formation
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