THE BASIC STRUCTURE OF BONES – 2
The images show a small area of a trabecular or spongy bone. This is an immature bone still being built, undergoing a process called Osteogenesisosteocytes occupy small cavities of the bone extracellular matrix called lacunae (singular: lacuna). Osteocytes highlighted in light green.
2 – The osteoblasts cells that in sections are seen forming rows of nuclei placed on the trabecular surfaces are mostly . Some of them are osteoprogenitor cells. They become highlighted in orange.
3 – In the lower right corner of the figure is a large isolated cell placed on the surface of a trabecula. This cell is an osteoclast (highlighted in blue and indicated by an arrow).
2 – The osteoblasts cells that in sections are seen forming rows of nuclei placed on the trabecular surfaces are mostly . Some of them are osteoprogenitor cells. They become highlighted in orange.
3 – In the lower right corner of the figure is a large isolated cell placed on the surface of a trabecula. This cell is an osteoclast (highlighted in blue and indicated by an arrow).
The short stretches of bone tissue stained pink that merge with other stretches are trabeculae. They become highlighted in light brown/orange.
The clear areas between the trabeculae, highlighted in light blue, contain loose connective tissue.
Both, the trabeculae and the spaces between them, form spongy bone similar to that shown in the previous page.
