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The epidermis is the most superficial layer of skin, a squamous epithelium with several strata: the stratum corneum, stratum lucidum, stratum granulosum, stratum spinosum, and stratum basale. [8] Nourishment is provided to these layers by diffusion from the dermis since the epidermis is without direct blood supply.
The epidermis, "epi" coming from the Greek language meaning "over" or "upon", is the outermost layer of the skin. It forms the waterproof, protective wrap over the body's surface, which also serves as a barrier to infection and is made up of stratified squamous epithelium with an underlying basal lamina.
Superficial (from Latin superficies ' surface ') describes something near the outer surface of the organism. [1] For example, in skin , the epidermis is superficial to the subcutis . [ 27 ]
The dermis is composed of three major types of cells: [3] fibroblasts, macrophages, and mast cells.. Apart from these cells, the dermis is also composed of matrix components such as collagen (which provides strength), elastin (which provides elasticity), and extrafibrillar matrix, an extracellular gel-like substance primarily composed of glycosaminoglycans (most notably hyaluronan ...
The temporoparietal fascia can serve as a donor tissue for reconstructive surgery.It affords reliable flaps with good blood supply when the tissues of the region are intact (however, prior lesions to the region may compromise the blood supply of the tissues; creating flaps from such compromised tissue is contraindicated due to a risk of subsequent ischaemic necrosis of the flap).
The superficial cervical fascia is a thin layer of subcutaneous connective tissue that lies between the dermis of the skin and the deep cervical fascia. [1] It contains the platysma , cutaneous nerves [ 1 ] [ 2 ] from the cervical plexus , [ 2 ] blood vessels, and lymphatic vessels.
the superficial temporal artery gives off frontal and parietal branches to supply much of the scalp the occipital artery which runs posteriorly to supply much of the posterior aspect of the scalp the posterior auricular artery , a branch of the external carotid artery, ascends behind the auricle to supply the scalp above and behind the auricle.
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