|Embryonic Hyaline Cartilage. This is a section through an embryo head illustrating a developing nasal septum. The central area outlined in red contains chondroblasts that have differentiated from mesenchymal cells. Outside of the red line, the field is mostly filled with mesenchymal cells. The area outlined in blue is enlarged in the image on the right.
The image on the right a portion of the image on the left. The area to the left of the red line contains chondroblasts in the process of matrix secretion. Mesenchymal cells are located to the right of the red line.