This HPW3C class is really stressing me out, but I'm excited to learn about bone growth in babies today. What about you?
SCHOOL
Girl, relax. You already know i'm only in this class beacuse we getto take the baby home.
*Laughter*
Good Morning class. today we will be learning about bone growth in babies.
CLASSROOM
That's right.
Ossification. Does anyone know the meaning of this word and the two types of it?
Intramembranous Ossification is the direct laying down of bone into the primitive connective tissue (mesenchyme), while Endochondral Ossification involves cartilage as a precursor.
CLASSROOM
Osteoblasts then lay down Osteiod and Collogen fibers form inside. The Osteoblasts are entrapped within the Osteiod and Spicules are later formed.
Blood Vessels condence and form Periosterum. All of this leads to the formation of Lamellar bone.
In Intramembranous Ossification Mesenchyme within the Embroyonic Fibrous Connective Tissue differentiate into Osteoblasts.
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KEVIN WAKE UP!
HhHhMmMm
Huh? What? Me? Umm Ms. I wasnt sleeping, my eyes were closed because I was just picturing the bone coming together as you were talking.
Anyways, as I was saying next is the Endochondral Ossification. this all begin in the developing fetus.
Controblasts begin secreting Cartilaginous Matrix that form Hyaline Cartilage made for bone development.
Chondrocytes within the ceter begin to resorb some of the surrounding cartilage Matrix.
