covers the rest of our body. The two types of skin share a lot of characteristics‚ but they also have differences which warrant a different classification. They are similar in that both are composed of 3 major layers: the epidermis‚ the dermis‚ and the hypodermis. The epidermis is where the epithelial cells are located‚ the dermis are where connective tissues‚ nerves‚ and blood vessels start to appear‚ and the hypodermis is where fat cells are located. The dermis of both tissues are divided into
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with the basic structure of the skin‚ and as we probably know‚ the skin consists of two layers: dermis and epidermis. The epidermis has only one type of structures which are cells -no blood vessels‚ no lymphatics-‚ and the majority of those cells (about 85% of those cells) are called “keratinocytes”. The rest are called melanocytes‚ merkel cells‚ and langerhans cells. The cells in the epidermis are arranged into 4 layers: * Basal layer: it is where we have mitosis‚ and then the cells will migrate
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Function of the Skin The skin is more than just external covering. It acts as a sensitive boundary between our bodies and the environment. The skin has several important functions‚ for example: Protection‚ temperature regulations‚ waste removal and sense of touch. Protection • The skin acts as a protective organ. The film of sebum and sweat on the surface of the skin (acid mantle). It acts as an anti-bacterial agent to help prevent the multiplication of micro-organisms on the skin. • The fat
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Thalgo was taken over in the year 1999 the company was founded in the south of France. Using the benefits of algae and active marine ingredients in Cosmetics. The sea contains all traces and micro- nutrients all essential to the human metabolism. Algae has the extra ordinary ability to concentrate all the riches of marine life. Algae can contain up to 1000 times more iodine‚ 100 times more calcium‚ and 10 times more magnesium than a land plant. Algae is also rich in vitamins and once dried with the
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Corpuscles that exist there Know that Skin accounts for 7% of the body weight (9 11 lbs) Know how to calculate percent skin from a given weight and vice versa. Know the name‚ shape‚ and characteristics of the cell types that exist in the Epidermis Keratinocytes keratin producing cells that allow the skin to have its protective effect. Melanocytes the spider shaped cells that produce melanin‚ a dark pigment. Merkel Cells Spiked like hemisphere cell important for touch sensation
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the three layers (epidermis‚ dermis‚ subcutaneous tissue) is not part of the integument? Answer: Subcutaneous tissue 3. The dermis has two main layers. Which one of these is the most superficial? Answer: Papillary layer 4. What is the most common connective tissue in the dermis? Answer: Collagenous fibers 5. The release of heat from the body by blood vessels occurs in what main layer of the integument? Answer: Dermis 6. Which stratum is the deepest layer of the epidermis? Answer: Stratum
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contains the epidermis‚ which is the farthest layer of skin‚ it provides a waterproof barrier and creates our skin tone. The dermis‚ beneath the epidermis‚ contains tough connective tissue‚ hair follicles‚ and sweat glands. The deeper subcutaneous tissue‚ which is the hypodermis‚ is made of fat and connective tissue. In the the epidermis most of the cells are keratinocytes‚ they come from the deepest layer of the epidermis and with time makes its way to the surface of the epidermis. Keratinocytes
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layers—the epidermis‚ dermis‚ and fat layer (also called the subcutaneous layer). Each layer performs specific tasks. | | | | Getting Under the Skin | | The skin has three layers. Beneath the surface of the skin are nerves‚ nerve endings‚ glands‚ hair follicles‚ and blood vessels. | | Epidermis: The epidermis is the relatively thin‚ tough‚ outer layer of the skin. Most of the cells in the epidermis are keratinocytes. They originate from cells in the deepest layer of the epidermis called
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fact that one pore opening along with one sweat gland exists for each ridge "unit". Friction ridges are in their definitive form on the fetus before birth. Once this blueprint has been established‚ in the stratum basale (generating layer) of the epidermis on the fetus prior to birth‚ it does not change except from injury‚ disease or decomposition occurring after death. Injury sustained by generating layer (Stratum basale) may affect the skin ’s ability to regenerate and scar tissue forms. Location
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composed of two distinct regions‚ the epidermis and the dermis. These two areas are firmly attached to one another along a wavy borderline. The epidermis (epi = upon) composed of epithelial cells‚ and is the outermost protective shield of the body. Epidermis - Structurally‚ the epidermis is a thick keratinued stratified squamous epithelium consisting of four distinct cell types and five distinct layers. Cells of the Epidermis - Cells populating the epidermis include: keratinocytes‚ melanocytes‚
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