Histology - Lecture 2 Flashcards
(16 cards)
At the level of the diaphysis, the perichondrium is transformed into…
periosteum
The bone collar prevents …
the diffusion of nutrients to…?
Because the bone collar prevents the diffusion of nutrients, the cartilage…
degenerates (hypertrophy, death of chondrocytes and calcification of the ECM)
What penetrates into the spaces left by dead chondrocytes in periosteum?
Blood vessels (***they bring progenitor cells that differentiate into osteoblasts, forming woven bone on the periphery)
T/F: Around the age of 18, the epiphyseal plate disappears from the joint
T
What is responsible for the growth in length of the bone?
Epiphyseal plate
The resting zone consists of …
hyaline cartilage (w/o morphological changes)
In the zone of … the chondrocytes divide rapidly and form cell columns following the main axis of the bone
proliferation
In the zone of …
Osteoclasts form from hematopoietic precursor cells under the action of …
RANKL
How do osteoclasts dissolve calcium phosphate during bone resoprtion?
Another name for synovial joint
diarthrosis
How do synovial joints connect bones together?
The synovial membrane contains many…
fenestrated blood vessels (plasma leaks out into the joint space, forming synovial fluid)
Synovial fluid is composed of plasma from synovial capillaries enriched by..
mucins, hyaluronins, …
