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The epiphyseal plate, epiphysial plate, physis, or growth plate is a hyaline cartilage plate in the metaphysis at each end of a long bone.It is the part of a long bone where new bone growth takes place; that is, the whole bone is alive, with maintenance remodeling throughout its existing bone tissue, but the growth plate is the place where the long bone grows longer (adds length).
Chondroblasts, or perichondrial cells, is the name given to mesenchymal progenitor cells in situ which, from endochondral ossification, will form chondrocytes in the growing cartilage matrix. Another name for them is subchondral cortico-spongious progenitors. [1] They have euchromatic nuclei and stain by basic dyes.
Diagram of cartilage cells called chondroblasts. Date: 30 July 2014 (released by CRUK) Source: Original email from CRUK: Author: Cancer Research UK: Permission (Reusing this file) This image has been released as part of an open knowledge project by Cancer Research UK. If re-used, attribute to Cancer Research UK / Wikimedia Commons
Chondroblastoma is a rare, benign, locally aggressive bone tumor that typically affects the epiphyses or apophyses of long bones. [1] [2] It is thought to arise from an outgrowth of immature cartilage cells (chondroblasts) from secondary ossification centers, originating from the epiphyseal plate or some remnant of it.
In the deeper zones, chondrocytes form columns that are oriented perpendicular to the cartilage surface, along with the collagen fibers. Different behaviors may be exhibited by chondrocytes depending on their position within the different layers. In primary chondrocyte cultures, these zonal differences in synthetic properties may persist.
The biggest long-term story in the US economy is the generational divide between Baby Boomers and millennials. The Boomers, born in the wake of World War II with birth dates spanning roughly 1946 ...
Histopathology of chondroid syringoma. A chondroid syringoma is a well circumscribed but unencapsulated, multilobulated sweat gland-derived tumor. [1] It is centered in the deep dermis or subcutaneous fat. [1]
"We're all doing the best we can," she says. "Cooper's made of the same tough stuff I am. And we are all leaning on each other and coping." Still, she's feeling upset about losing two things that ...