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The skin is the body’s largest organ and it is made up of seven layers, each of which has a specific function. The skin is part of the body’s innate immune system and acts as the body’s first barrier against germs, ultraviolet (UV) light, chemicals, and injury.
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The skin is made up of three distinctive layers: the epidermis (the outermost layer of the skin); dermis (the layer below the epidermis); and hypodermis or subcutaneous tissue (the deepest layer) (Figure 21.2). Each layer varies in its anatomy and function (Yousef et al., 2022).
Describe the layers of the skin and the functions of each layer. Describe the layers of the epidermis and dermis. Identify and describe the hypodermis and fascia. Describe the role of keratinocytes and their life cycle. Describe the role of melanocytes in skin pigmentation.
16 wrz 2024 · The skin is composed of two main layers: the epidermis and the dermis. The epidermis is a keratinized stratified squamous epithelium. The dermis contains blood vessels, hair follicles, sweat glands, and other structures. Beneath the dermis lies the hypodermis, which is not considered part of the skin.
18 wrz 2018 · Your skin includes three layers known as epidermis, dermis, and fat. Some health issues, such as dermatitis and infections, can affect how these different layers work to protect your...
19 maj 2023 · The number of skin layers that exists depends on how you count them. You have three main layers of skin—the epidermis, dermis, and hypodermis (subcutaneous tissue). Within these layers are additional layers. If you count the layers within the layers, the skin has eight or even 10 layers.
31 lip 2023 · It is comprised of three major layers: epidermis, dermis and hypodermis, which contain certain sublayers. Owing to variations in height and weight, the surface area of the skin may vary based on these parameters. The surface of the skin is a parameter that is often used in determining the therapeutic dose for various medications.
