Osteoclast on bone (by Michal Shemesh)
Left panel: bone surface, showing the resorption pits on bone and the dynamic uptake of small bone fragment.
Right panel: an overlay of the same bone area with the resorbing osteoclast, stably expressing GFP-actin. a large SZ is seen progressing on the edges of the upper resorption pits, while small and short-lived SZs correlate with bone uptake (lower pit).