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Surrounding these fibers, the matrix also includes a gel-like substance made of proteins. Watch this video to learn about the challenges these children and their family face. Which layer of the dermis provides cushioning for subcutaneous tissues and why does this layer provide most of the cushioning instead of the other layer? Dermiss contains larger parts called Collagen n Elastic Fibres arranged systematically& place micro-glands(which produce important substances such as collagen). _____ skin contains the following accessories: nails, hair follicles, sweat glands, and sebaceous glands. The cells of the stratum corneum contain large amounts of the protein ______. They send nerve impulses to the brain which interprets and responds to the sensory information. Thats why it is important to clean and cover even a minor wound in the epidermis. Melanocyte cells make melanin, which is a natural skin pigment that determines the color of your skin. T/F The reason the cells of the stratum spinosum have a spiny appearance when viewed under a microscope is due to shrinkage of the cytoplasm, Normal skin color results from a combination of colors of _____, melanin, and carotene. The LibreTexts libraries arePowered by NICE CXone Expertand are supported by the Department of Education Open Textbook Pilot Project, the UC Davis Office of the Provost, the UC Davis Library, the California State University Affordable Learning Solutions Program, and Merlot. Corneocytes are strong, dead keratinocytes, and they protect you from harm, including abrasions, light, heat and pathogens. The main functions of the dermis are to regulate temperature and to supply the epidermis with nutrient -saturated blood. Which layer of the epidermis contains keratinocytes that have begun to die? After spending some time in the stomach, the food is sent into the 14.______where nutrients are 15.______. This layer consists of fat, fibres, collagen and blood vessels which make the skin flexible and strong. A stem cell divides in the stratum basale, the resulting daughter cell enters the stratum ______ and it begins to lose its ability to divide. The person in Figure \(\PageIndex{1}\) is no doubt feeling the burn sunburn that is. Use your fingertips to apply a gentle, non-abrasive cleanser. c: nail plate The cells in the different layers of the epidermis originate from basal cells located in the stratum basale, yet the cells of each layer are distinctively different. It also contains most skin structures such as glands and blood vessels. Despite the huge number of individual microorganisms living on the skin, their total volume is only about the size of a pea.