CELLS OF THE BONE TISSUE – 2
1 – Osteoblasts (highlighted in orange after clicking) cover the outer and inner bone surfaces. In the image the osteoblasts are the majority of the cells covering surfaces of a trabecula. A few flattened, spindle-shaped cells, are termed “inactive osteoblasts” but perhaps may be osteoprogenitor cells..
2 – Osteocytes (highlighted in green) placed in small cavities surrounded by a pink stained extracellular matrix. Two osteocytes (highlighted in dark green) placed close to the trabecula surface are possibly cells that recently became surrounded by bone matrix, having transitioned from osteoblasts to osteocytes.
3 – An osteoclast (highlighted in dark blue) placed on the outer surface of a trabecula. It is very large and exhibits a heavily stained cytoplasm and several nuclei.
4- the connective tissue that surrounds the trabecula is highlighted in weak blue.
Notice two blood vessels at the upper right corner and at the bottom of the image.
2 – Osteocytes (highlighted in green) placed in small cavities surrounded by a pink stained extracellular matrix. Two osteocytes (highlighted in dark green) placed close to the trabecula surface are possibly cells that recently became surrounded by bone matrix, having transitioned from osteoblasts to osteocytes.
3 – An osteoclast (highlighted in dark blue) placed on the outer surface of a trabecula. It is very large and exhibits a heavily stained cytoplasm and several nuclei.
4- the connective tissue that surrounds the trabecula is highlighted in weak blue.
Notice two blood vessels at the upper right corner and at the bottom of the image.
