Try to find the mitotically proliferating cells shown here. At the centre there is a vein, the central vena of the lobe. Some liver cells normally possess double nuclei. A neat example of cell differentiation. There are two resting liver cells on the left and a large, dividing one at the center.
Mitosis is in the anaphase.
On the right we see such a biliary duct of the mouse lined by cylindrical, so-called epithelial cells. Around this duct there are cells of smooth muscle and connective tissues, blood capillary at the left, also some lymphocytes, etc. Again, even in one microscopic field as shown here, animal tissues represent a wide variety of differentiated cells. We started our tour with prokaryotic cells without nuclei. After a very quick overview we came to the vertebrates , in particular the mammals, to which Homo sapiens sapiens belong.