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State how the epithelial tissue is adapted to its function

      

State how the epithelial tissue is adapted to its function

  

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Jacqueline
Epithelial Cells are very closely packed and cell junctions make sure that they are securely attached. There are no blood vessels so everything moves by diffusion. Therefore, “Epithelial Cells adapt their surface shape” to perform their function. Pseudo Stratified Epithelium has the nuclei at different levels and appears multi layered and only has the appearance of multiple layers unlike stratified epithelium – which is actually layered for two or more. These cells are at varied lengths, so not all cells reach apical surface, and those that do will either secrete mucus – goblet cells or have cilia – to sweep away mucus in the Ciliated Columnar Pseudo Stratified Epithelium. Columnar Cells –protect underlying tissue and are specialized with secretion and absorption (mainly non ciliated columnar) and often have microvilli or cilia. Ciliated Columnar Pseudo Stratified Epithelium can be found in the respiratory system as well as the epidermis and male urethra. Due to their location in the respiratory tract, the epithelial cells are adapted so that they can get rid of the foreign particles that get swept in with inhalation.
Supplanteradept32 answered the question on March 13, 2019 at 19:48


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