This type of epithelium is also found in thyroid gland salivary glands as well

This type of epithelium is also found in thyroid

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epithelium is secretion and absorption. This type of epithelium is also found in thyroid gland, salivary glands as well as ducts of glands, such as ducts of sweat glands, for example. The flat shape of the simple squamous epithelium allows substances to either easily diffuse through the cells or to be filtered through them. In addition to the kidney, simple squamous epithelium is also found in other locations of the body. For example, it lines internal surfaces of the ventral body cavities, blood vessels, heart, and alveoli of the lungs. On your slide, simple cuboidal epithelium is found in the walls of the nephron tubules. This type of epithelium, appears as a single row of cube-shaped cells. Simple squamous epithelium is found around glomeruli (singular, glomerulus). This type of epithelium appears as a single row of this, flat cells. Locate nephron tubules, cut in cross section, and observe that the walls of these tubules are composed of cuboidal epithelium. On the same slide, find the glomerulus and observe simple squamous epithelium, located around the glomerulus. Keep in mind that your slide is a section through they kidney, hence you are looking at a side view of the simple squamous epithelium, as shown in Figure 7B - C. 5
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Figure 6: Schematic representation of a single nephron. Figure 7A: Schematic representation of simple cuboidal epithelium Figure 7B: Schematic representation of simple squamous epithelium. Figure 7C: One simple squamous epithelial cell. A- top view; B- side view. 6
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Simple cuboidal epithelium Figure 7D: Microscopic view of kidney. Close up of a glomerulus. c) Stratified Squamous Epithelium : Stratified squamous epithelium provides protection against abrasion and pathogens to underlying tissues. It is commonly found on surfaces subject to abrasion, such as mouth, pharynx, esophagus, vagina, anus, and outer skin. Examine the slide which is a section through the esophagus. The esophagus is the region of the digestive tract connecting the pharynx and the stomach. Use Figure 8 to locate the inner surface of the esophagus on your slide. This surface is lined with stratified squamous epithelium. As seen in Figure 8, the deeper layer (close to the basement membrane) of the stratified squamous epithelium is composed of cuboidal cells that are actively dividing by mitosis. Newly produced cells are pushed upward toward the surface of the tissue and are gradually transformed into flat, squamous cells. These cells are continually sloughed off. Thus, the organization of the 7
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stratified squamous epithelium ensures that abrasion affects the oldest (outermost) cells, while protecting the underlying tissues. F igure 8A: Schematic representation of stratified squamous epithelium . Figure 8B: Microscopic view of esophagus. What is the specific shape and function of the cells in the deepest layer of this type of epithelium?
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