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Question
Which of the following is/are known as urothelium?
Which of the following is/are known as urothelium?
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Solution
The correct option is C Transitional epithelium
Transitional epithelium are thinner and more elastic as compared to stratified epithelium. They are found in the urinary bladder and the ureter and are also known as urothelium.
Squamous epithelium is a single layer of thin flattened cells with irregular boundaries. They are also known as tessellated epithelium or pavement epithelium. They are found in alveoli, lymph vessels and blood vessels (endothelium), endocardium of heart, lining of the Bowman’s capsule. They form a diffusion boundary.
Cuboidal epithelium appears cuboidal in vertical section and polygonal in surface view. They participate in secretion, absorption and excretion. They are found in the duct of salivary glands, thyroid follicles present in the thyroid gland, in the proximal convoluted tubule of the nephrons. Microvilli increase the surface area for enhanced absorption. They are also referred to as brush-border epithelium.
Stratified epithelium consists of more than one layer of cells. They provide protection to the underlying tissues against various kinds of stresses. Have little role in secretion or absorption. The deepest layer is formed by columnar cells. The superficial layers can vary from squamous to cuboidal. They are found in the dry surface of the skin, moist surface of the buccal cavity, pharynx and in the inner lining of ducts of salivary glands and pancreas.
Transitional epithelium are thinner and more elastic as compared to stratified epithelium. They are found in the urinary bladder and the ureter and are also known as urothelium.
Squamous epithelium is a single layer of thin flattened cells with irregular boundaries. They are also known as tessellated epithelium or pavement epithelium. They are found in alveoli, lymph vessels and blood vessels (endothelium), endocardium of heart, lining of the Bowman’s capsule. They form a diffusion boundary.
Cuboidal epithelium appears cuboidal in vertical section and polygonal in surface view. They participate in secretion, absorption and excretion. They are found in the duct of salivary glands, thyroid follicles present in the thyroid gland, in the proximal convoluted tubule of the nephrons. Microvilli increase the surface area for enhanced absorption. They are also referred to as brush-border epithelium.
Stratified epithelium consists of more than one layer of cells. They provide protection to the underlying tissues against various kinds of stresses. Have little role in secretion or absorption. The deepest layer is formed by columnar cells. The superficial layers can vary from squamous to cuboidal. They are found in the dry surface of the skin, moist surface of the buccal cavity, pharynx and in the inner lining of ducts of salivary glands and pancreas.
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