youngest keratinocytes are found in the stratum basale?
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The deeper of the two layers of the skin is the hypodermis. The youngest keratinocytes are found in the stratum basale. Melanin, hemoglobin, and carotene give color to the skin. Albinism is the genetic lack of melanin that results in a milky white coloration of the skin.
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It is synthesized by cells known as keratinocytes and may be hard or soft. Hard keratin is found in hair and nails; soft keratin is found in the epidermis of the skin in the form of flattened non-nucleated scales that slough continually. ... The main differences in various keratins arises from their sulfur content.
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Anyone can be susceptible to this skin condition, but it's most common in children and teenagers. Keratosis pilaris often begins in late infancy or during adolescence. It typically clears up in one's mid-20s, with most cases completely gone by the age of 30.
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['Stratum Corneum.', 'Stratum Lucidum.', 'Stratum Granulosum.', 'Stratum Spinosum.', 'Stratum Basale.']
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A stratified squamous epithelium consists of squamous (flattened) epithelial cells arranged in layers upon a basal membrane. Only one layer is in contact with the basement membrane; the other layers adhere to one another to maintain structural integrity.
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What Are Basal and Squamous Cell Skin Cancers? Basal and squamous cell skin cancers are the most common types of skin cancer. They start in the top layer of skin (the epidermis), and are often related to sun exposure. Cancer starts when cells in the body begin to grow out of control.
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Keratinization. Keratinization refers to the cytoplasmic events that occur in the cytoplasm of epidermal keratinocytes during their terminal differentiation. It involves the formation of keratin polypeptides and their polymerization into keratin intermediate filaments (tonofilaments).
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The highlighted epithelial tissue is transitional epithelium. Highlighted epithelial tissue is transitional epithelium. The highlighted layer would NOT be stratum lucidum. The highlighted epithelium contains 5 layers in thick skin.
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Though this form of skin cancer is not usually life-threatening, one major difference between basal cell and squamous cell cancers is that squamous cell cancer are more likely to grow deeper into the layers of your skin and spread to other parts of the body.
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In exposed areas apical layers of epithelial cells are packed with filaments of the protein keratin. Nonkeratinized stratified squamous epithelium resists abrasion, but will dry out.
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History of skin cancer including basal cell carcinoma (BCC). Age over 50: Most SCCs appear in people over age 50. Fair skin: People with fair skin are at an increased risk for SCC. Gender: Men are more likely to develop SCC.
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In a simple epithelium the cells form a single layer and are all attached to the basement membrane. A stratified epithelium consists of multiple layers of cells in which only the basal layer is attached to the basement membrane.
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Dermis: Thick skin has a thinner dermis than thin skin, and does not contain hairs, sebaceous glands, or apocrine sweat glands. Thick skin is only found in areas where there is a lot of abrasion - fingertips, palms and the soles of your feet. ... There are only four layers in the epidermis of thin skin.
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Epithelium lines both the outside (skin) and the inside cavities and lumina of bodies. The outermost layer of human skin is composed of dead stratified squamous, keratinized epithelial cells.
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The epidermis is the outermost layer of the skin. Categorized into five horizontal layers, the epidermis actually consists of anywhere between 50 cell layers (in thin areas) to 100 cell layers (in thick areas). The average epidermal thickness is 0.1 millimeters, which is about the thickness of one sheet of paper.
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Basal cell carcinoma occurs when one of the skin's basal cells develops a mutation in its DNA . Basal cells are found at the bottom of the epidermis — the outermost layer of skin. Basal cells produce new skin cells.
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What cells are found in the epidermis? ... The most superficial layer of the epidermis contains living cells. False. In stratum corneum, all cells are dead.