Epithelial Tissues

There are three different types of epithelial tissues that are found inside the human body. There is the cutaneous membrane (tissue), which we would refer to as “skin”. This part is the only epithelial tissue that is touched by air and is dry. The cutaneous membrane is composed of keratinizing stratified squamous epithelium. The second is the mucous membrane, which is the tissue used for absorption and secretion, protective lubricating mucus in the repertory and digestive system. This membrane lines the hollow organs, such as the throat, urinary or digestive tracts. The mucous membrane can be made up of simple columnar epithelium. The last type is the serous membrane. This membrane can line and cover the abdominal cavity and its organs. This is referred to peritoneum; it also can help separate the heart and its lungs away from one another. The serous membrane is made up of a layer of simple squamous epithelium which is laying on a small layer of areolar connective tissues, these membranes help line the cavities of the body which are closed to the outside. These types of epithelial tissues are essential to the human body functions. Looking further into the serous membrane you gain knowledge in knowing that its is one the most need for body functions. This is the fluid it secretes called serous fluid allows the organs to move around in the body without causing any friction. Could you imagine your heart inside your body in a dry atmosphere; every heartbeat would be painful or better yet it would stop beating because it would be hard as a rock. After reading this I this part of the epithelial tissues is the most important but all play a very great role