3/29/2024 0 Comments Skin luminophor quizlet![]() ![]() ![]() It does not have any blood vessels within it (i.e., it is avascular). It is made of four or five layers of epithelial cells, depending on its location in the body. The epidermis is composed of keratinized, stratified squamous epithelium. What are the basic functions of each of these layers? The Epidermis View this animation to learn more about layers of the skin. The skin consists of two main layers and a closely associated layer. Beneath the dermis lies the hypodermis, which is composed mainly of loose connective and fatty tissues. Figure 5.1.1 – Layers of Skin: The skin is composed of two main layers: the epidermis, made of closely packed epithelial cells, and the dermis, made of dense, irregular connective tissue that houses blood vessels, hair follicles, sweat glands, and other structures. It also has numerous sensory, and autonomic and sympathetic nerve fibers ensuring communication to and from the brain. The deeper layer of skin is well vascularized (has numerous blood vessels) and is superficial to the hypodermics. Accessory structures, hair, glands, and nails, are found associated with the skin. The most superficial layer of the skin is the epidermis which is attached to the deeper dermis. The skin is made of multiple layers of cells and tissues, which are held to underlying structures by connective tissue ( Figure 5.1.1). The skin and its accessory structures make up the integumentary system, which provides the body with overall protection. Describe the role of melanocytes in skin pigmentationĪlthough you may not typically think of the skin as an organ, it is in fact made of tissues that work together as a single structure to perform unique and critical functions.Describe the role of keratinocytes and their life cycle.Identify and describe the hypodermis and fascia.Describe the layers of the epidermis and dermis.Describe the layers of the skin and the functions of each layer.Identify the components of the integumentary system.By the end of this section, you will be able to:ĭescribe the layers of the skin and the functions of each layer ![]()
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