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Integumentary system

The Life History of A Keratinocyte

Dead cells constantly flake off the skin surface. They float around as tiny white specks in the air, settling on household surfaces and forming much of the house dust that accumulates there. Because we constantly lose these epidermal cells, they must be continually replaced. Keratinocytes are produced

Thermoregulation -Temperature Regulation In Skin – Hypothermia And Hyperthermia

Body temperature is maintained at 37°C as a result of balance between heat generation and heat loss processes. This balance involves autonomic nervous system, metabolism, and behavioral responses. According to a 1992 study published in the Journal of the American Medical Association, humans are able to maintain

Infectious And Non infectious Disorders of The Skin

Because the skin is in contact with the environment, it is especially susceptible to injuries, such as abrasions (scraping), contusions (bruises), and cuts. Other common disorders of the skin may be subdivided into infectious and noninfectious disorders. Some inflammatory disorders may fall into either group, depending on


The meninges consist of three membranes arranged in layers. From deepest to most superficial they are the pia mater, arachnoid mater, and dura mater. The pia mater is the very thin, deepest membrane. It tightly envelops both the brain and the spinal cord and penetrates into each

Function And Structure of Skin And Subcutaneous Tissue

The skin is connective tissue that consists of cells, fibers and an extracellular matrix. The epidermis is the thin outer layer of skin, the dermis is the thicker inner layer of skin. Beneath the dermis, lies a layer of loose connective tissue called subcutaneous tissue or the

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