eptithetical and skin.docx

Types of epithelial tissues 8 how are epithelial

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Types of Epithelial Tissues 8. How are epithelial tissues classified?
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Epithelial tissue is classified according to the shape of the cells that form it (epithelial cells may be cuboidal, columnar, or squamous) and according to the number of layers in which those cells are placed in the tissue (simple or stratified). The main types of epithelial tissues are simple cuboidal, simple columnar, simple squamous, stratified squamous and pseudostratified columnar (resembling more than one layer but actually having only one). There are also stratified cuboidal and stratified columnar epithelia (rare). Epithelial Tissue Review - Image Diversity: types of epithelial tissue 9. How different is simple cuboidal epithelium from columnar epithelium? Where are these epithelia found in the human body? Simple cuboidal epithelium is made of a single layer of cuboidal epithelial cells. Simple columnar epithelium is made of a single layer of prismatic cells. Simple cuboidal epithelium can be found, for example, in renal tubules and in the walls of thyroid follicles. The simple columnar variety is the epithelium that internally covers the intestines, the stomach and the gallbladder, for example. 10. How different is simple squamous epithelium from stratified squamous
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epithelium? Where are they found in the human body? Simple squamous epithelium is made of a single layer of flat (squamous) cells. Stratified squamous epithelium is made of the same type of flat cells placed in several superimposed layers. Simple squamous epithelium is found in pulmonary alveoli. Stratified squamous epithelium can be found in moist mucosae, such as the mucosae of the mouth, esophagus and vagina. It is also the epithelium of the skin.
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