What is Histogenesis of cartilage?
What is Histogenesis of cartilage?
Two intimately coupled processes underlie the patterned growth of cartilage. The first is histogenesis, which entails the production of cartilage as a discrete tissue; the second is morphogenesis, which pertains to the origins of three-dimensional form.
Which is articular and growth cartilage?
Articular cartilage is hyaline cartilage and is 2 to 4 mm thick. Unlike most tissues, articular cartilage does not have blood vessels, nerves, or lymphatics. It is composed of a dense extracellular matrix (ECM) with a sparse distribution of highly specialized cells called chondrocytes.
What is growth of cartilage from within cartilage?
Interstitial growth occurs within the cartilage through mitotic division of the existing chondrocytes. It occurs in the early phases of cartilage development to increase tissue mass, at the epiphyseal plates of long bones, and at articular surfaces.
What are the mechanisms of cartilage growth?
Two distinct mechanisms of tissue growth have been recognized: appositional growth, or growth at a tissue surface, and interstitial growth, or growth within tissue volume (12).
What is the Canaliculus?
Medical Definition of canaliculus : a minute canal in a bodily structure: as. a : one of the hairlike channels ramifying a haversian system in bone and linking the lacunae with one another and with the haversian canal.
What is the appositional growth of cartilage?
Appositional growth occurs when chondroblasts secrete new matrix along existing surfaces and this causes the cartilage to expand and widen. In interstitial growth, chondrocytes secrete new matrix within the cartilage and this causes it to grow in length.
How does cartilage grow in the epiphyseal plate?
Bone Growth The cartilage in the region of the epiphyseal plate next to the epiphysis continues to grow by mitosis. The chondrocytes, in the region next to the diaphysis, age and degenerate. Osteoblasts move in and ossify the matrix to form bone.
What is appositional growth of cartilage?
What is Appositional growth cartilage grows in two ways appositional and interstitial appositional growth?
Cartilage grows in two ways, appositional and interstitial. What is appositional growth? Chondrocytes in the lacunae divide and secrete matrix, allowing the cartilage to grow from within.
Where does cartilage grow?
Bones grow in length at the epiphyseal plate by a process that is similar to endochondral ossification. The cartilage in the region of the epiphyseal plate next to the epiphysis continues to grow by mitosis. The chondrocytes, in the region next to the diaphysis, age and degenerate.
What cell differentiates into an Osteocyte?
osteoblasts
Some of the osteoblasts and their interconnecting processes are surrounded by bone matrix and differentiate into osteocytes, which are represented by the finely stippled cells. Osteocytes are involved in the physiological activities of bone including mineral exchange and final mineralization of the bone matrix.
What are Osteons?
16 hours ago
Osteons are formations characteristic of mature bone and take shape during the process of bone remodeling, or renewal. The spaces between adjacent osteons are filled with interstitial lamellae, layers of bone that are often remnants of previous Haversian systems.
