What are epithelial membranes?
epithelial membranes consist of epithelial tissue and connective tissue. These membranes serve as lining and covering for different body structures and also form glands. There are two primary types of epithelial membranes: serous membranes and mucous membranes. The epithelial tissue has several uses, including material absorption, protection from foreign sources, providing touch of touch, excretion of body fluids and transporting materials between cells.
The structure of epithelial membranes is basic. The upper layer of the epithelial tissue is associated with the base tissue binder with a basement membrane. This middle layer is created by proteins and carbohydrates secreted by epithelial and connective tissues. The connective tissue layer is placed nerves and blood vessels that supply the upper layers, as well as binds the membrane to the body structure. When epithelial cells are folded into connective tissue, glands are formed.
The outer part of the epithelial membranes - epithelial tissue - can be composed of one layer of cells known as simpleepithelium. Multiple layers of cells are stratified epithelium. The former type of epithelium is named by the shape of its core, such as the block or columnar. Simple epithelial cells are found structures of lining such as blood vessels, lungs, reproductive organs and different glands. Some simple cells contain sensory receptors that help in contact, while others, such as pseudostratified epithelial cells, have short hair called cilia that help moving body materials.
stratified epithelium, on the other hand, line structure, which must withstand greater strictness, such as esophagus, urinary tract and skin. Two other types of stratified epithelial classifications are keratinized and transient. The keratinized epithelium is unique because of its hard, waterproof exterior composed of the dead. In contrast, stretching capabilities are characterized by a transient epithelium. All three layers of tissueThe epithelium, Endoderm, Mesoderm and Ectoderm form.
mucous membranes, also called mucous membranes, are one of the main types of the epithelial membrane. They balance parts of the body that have external opening. Their primary function is absorption and secretion. Therefore, the digestive tract, excretory tract, reproductive tract and respiratory tract have mucosal coverings.
Another main type of epithelial membrane consists of serous membranes. These structures come from their name from the serous fluid they produce. The fluid is excreted by epithelial tissue and protects the organs in close proximity from injury. Therefore, serous membranes are limited and protects the internal organs and organ cavities that contain them. The pleura, which lines the thoracic cavity, is one example of the serous membrane.