What are the differences between intramembranous ossification and endochondral ossification?

What are the differences between intramembranous ossification and endochondral ossification?

In intramembranous ossification, bone develops directly from sheets of mesenchymal connective tissue. In endochondral ossification, bone develops by replacing hyaline cartilage. Activity in the epiphyseal plate enables bones to grow in length. Remodeling occurs as bone is resorbed and replaced by new bone.

What happens to hypertrophic chondrocytes in endochondral ossification?

a Primary endochondral ossification begins with the formation of a chondrocyte template during embryogenesis. Chondrocytes undergo hypertrophy beginning from the mid-diaphysis, eventually extending to the epiphyseal poles. Hypertrophic cells undergo apoptosis, aided by the removal of matrix by osteoclasts.

What happens to chondrocytes during endochondral ossification?

In endochondral ossification, what happens to the chondrocytes? They die in the calcified matrix that surrounds them. They group together to form the primary ossification center. They develop into osteocytes.

What are the 5 stages of endochondral ossification?

What are the 5 stages of endochondral ossification?

  • Cartilage enlarges; Chondrocytes die.
  • blood vessels grow into perichondrium; cells convert to osteoblasts; shaft becomes covered with superficial bone.
  • more blood supply and osteoblasts; produces spongy bone; formation spreads on shaft.

At what age does ossification begin?

Bone ossification, or osteogenesis, is the process of bone formation. This process begins between the sixth and seventh weeks of embryonic development and continues until about age twenty-five; although this varies slightly based on the individual.

What are the 7 steps of endochondral ossification?

7 steps:

  • Development of the cartilage model.
  • Growth of the cartilage model.
  • Development of the primary ossification center.
  • Development of the Medullary cavity.
  • Secondary ossification centers.
  • Formation of articular cartilage & epiphyseal plate.
  • Closure of Growth Plate (epiphyseal plate hardens)

How long does endochondral ossification take?

Endochondral formation occurs in the matrix template and external to the periosteum. The cartilaginous tissue forms a soft callus around 7 to 9 days posttrauma. Concurrently, intramembranous ossification commences from solid bone beneath the periosteum on each fracture end.

Which is the most common type of ossification?

Endochondral ossification involves the replacement of hyaline cartilage with bony tissue. Most of the bones of the skeleton are formed in this manner. These bones are called endochondral bones.

What is another name for ossification?

In this page you can discover 13 synonyms, antonyms, idiomatic expressions, and related words for ossification, like: fossilization, hardening, induration, bone formation, ostosis, osteoblast osteoclast, conformity, endochondral, osseous, calcification and resorption.