16.1.3 POJA-L7125+7119 From osteoblast to osteocyte 3
16.1.3 POJA-L7125+7119 From osteoblast to osteocyte 3
16.1.3 POJA-L7125+7119 From osteoblast to osteocyte 3
Title: From osteoblast to osteocyte 3
Description:
One-micron section and electron micrograph of rabbit osteoblasts in woven bone, desmal ossification.
(A):
(1): Osteoblasts.
(2): Subosteoblastic layer.
(3): New formation of woven bone.
(4): Bone matrix (mineralised osteoid).
(B):
(5): Osteocyte with osmiophilic lamina. (thin dense lamina directly around the osteocyte).
(6): Woven bone (mineralised osteoid)
(7): Osteoblast, (bilobed nucleus) close to a thin layer of subosteoblastic layer
(8): Golgi area.
The quiescent osteocyte (B, 5) still has its osmiophilic lamina close to the cell membrane. The amount of RER profiles has increased. It suggests the transition to the formative stage of an osteocyte.
The osteoblasts (B,7) do have an extended RER and an elaborate Golgi apparatus needed for the production of collagen fibres type 1 and bone matrix proteins.
See also:
Keywords/Mesh: locomotor system, bone, woven bone, desmal ossification, mineralisation, osteoid, bone matrix, osteoblast, osteocyte, electron microscopy, histology, POJA collection
Title: From osteoblast to osteocyte 3
Description:
One-micron section and electron micrograph of rabbit osteoblasts in woven bone, desmal ossification.
(A):
(1): Osteoblasts.
(2): Subosteoblastic layer.
(3): New formation of woven bone.
(4): Bone matrix (mineralised osteoid).
(B):
(5): Osteocyte with osmiophilic lamina. (thin dense lamina directly around the osteocyte).
(6): Woven bone (mineralised osteoid)
(7): Osteoblast, (bilobed nucleus) close to a thin layer of subosteoblastic layer
(8): Golgi area.
The quiescent osteocyte (B, 5) still has its osmiophilic lamina close to the cell membrane. The amount of RER profiles has increased. It suggests the transition to the formative stage of an osteocyte.
The osteoblasts (B,7) do have an extended RER and an elaborate Golgi apparatus needed for the production of collagen fibres type 1 and bone matrix proteins.
See also:
- 16.1.3 POJA-L7067+7072 From osteoblast to osteocyte 1
- 16.1.3 POJA-L7126+7120+7122 From osteoblast to osteocyte 2
- 16.1.3 POJA-L7118+7121+7086 From osteoblast to osteocyte 4
- 16.1.3 POJA-L7052+7053 Development of flat bones 3
- 16.1.3 POJA-L7086B Osteocyte 1
Keywords/Mesh: locomotor system, bone, woven bone, desmal ossification, mineralisation, osteoid, bone matrix, osteoblast, osteocyte, electron microscopy, histology, POJA collection