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Cell divisions within the stratum __________ replace more superficial cells which eventually die and fall off.
Water loss due to evaporation of fluid that has penetrated through the skin is termed ________ perspiration.
keratinized stratified squamous epithelium
The epidermis of the skin is composed of which type of tissue?
The ________ in keratinocytes protects the epidermis and dermis from the harmful effects of sunlight.
Which of the following is not an effect of ultraviolet radiation?
production of cholecalciferol within epidermal cells
chromosomal damage in germinative cells or melanocytes
increased activity by melanocytes
The layer of the skin that contains the blood vessels and nerves that are closest to the surface of the skin is the ________ layer.
The layer of the skin that contains bundles of collagen and elastic fibers responsible for the strength of the skin is the ________ layer.
blood flow to the skin increases
If a fair-skinned person is sunburned, why does his or her skin turn red?
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