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.
Tight junctions prevent leakage through tissues.
It would definitely not be a good idea to have your gut contents leaking into your abdomen. Adhering junctions hold adjacent cells together and stabilize tissues. These are found in many tissues, and are particularly abundant in human skin, providing us with a nice strong outer covering. Gap junctions are open pathways between the cytoplasm of two adjacent cells. Substances with a molecular weight of 1200 daltons or lower can move directly from one cell to another via gap junctions.