Bone elongation - processes at the epiphyseal plate


Summary

This video explains the differences between bone widening and interstitial lengthening, focusing on how they affect appendages and the epiphyseal plate. It discusses the role of hyaline cartilage in the epiphyseal plate and how mitotic chondrocytes aid in bone growth through cell division and diaphysis elongation. The video also covers cartilage calcification, the function of osteoclasts in breaking down cartilage, and the migration of osteoblasts. Finally, it delves into the process of chondrocyte proliferation, leading to the formation of the epiphyseal line and the termination of bone growth.


Bone Widening vs. Interstitial Lengthening

Explanation of how bone widening and interstitial lengthening differ, focusing on appendages and epiphysial plate.

Structure of Epiphysial Plate

Description of the epiphysial plate's composition with hyaline cartilage and its role in bone lengthening.

Chondrocyte Proliferation and Maturation

Details on the mitotic chondrocytes, cell division, and elongation of the diaphysis in bone growth.

Calcification and Osteoclast Activity

Explanation of cartilage calcification, role of osteoclasts in breaking down cartilage, and migration of osteoblasts.

Formation of Epiphyseal Line

Process of chondrocyte proliferation leading to the formation of epiphyseal line and termination of bone growth.

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