When one examines a neuron under a microscope, one can easily see the numerous long processes. Therefore, a major part of differentiation as a neuron involves specializations of the cytoskeleton that supports these processes. Muscle Tissue Muscle tissue is formed of many muscle cells joined together. The differentiation of muscle cells for contraction is really very special, and we will talk about the proteins that make this possible in a separate lecture. All share the same contractile proteins, although there are important differences in the structure of the cells that make up these three tissues.
Muscle is the most abundant tissue in triploblastic animals.
Muscle cells are typically longer than they are wide. They are also unusual in that they can have more than a single nucleus in each cell. If you want to engage in excessive review of histology now if you are going to study histology in more detail in the future, there is an outstanding web site you should know about. It is called Histology World , and it provides enough information to get through a medical school histology course. Intercellular Contacts Specialized cell contacts are an extremely remarkable feature of animal cells.