| Stratum germinativum | | | | Section of epidermis. | | | | A diagrammatic sectional view of the skin (magnified). | | Gray's | subject #234 1063 | Stratum germinativum (also stratum basale or basal cell layer) is the layer of keratinocytes that lies at the base of the epidermis immediately above the dermis. It consists of a single layer of tall, simple columnar epithelial cells lying on a basement membrane. These cells undergo rapid cell division, mitosis to replenish the regular loss of skin by shedding from the surface. About 25% of the cells are melanocytes, which produce melanin which provides pigmentation for skin and hair. Image File history File links Skinlayers. ...
Image File history File links Gray940. ...
The keratinocyte is the major cell type of the epidermis, making up about 90% of epidermal cells. ...
It has been suggested that this article or section be merged with skin. ...
The dermis is a layer of skin beneath the epidermis that consists of connective tissue and cushions the body from stress and strain. ...
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Mitosis is the process in which a cell duplicates its chromosomes to generate two, identical cells. ...
Melanocytes are cells located in the bottom layer of the skins epidermis. ...
Broadly, melanin is any of the polyacetylene, polyaniline, and polypyrrole blacks and browns or their mixed copolymers. ...
Pathology
All melanocytes have the capacity to migrate widely in the embryo, and therefore a cancer of a melanocyte, a melanoma, will spread (metastasize) very easily. For this reason, melanomas are often fatal, and when surgically removed, a lot of surrounding tissue must be taken as well. Melanoma is a malignant tumor of melanocytes. ...
Metastasis (Greek: change of the state) is the spread of cancer from its primary site to other places in the body. ...
Albinism is a recessive hereditary condition in which the melanocytes do not procuce melanin. People appear very pale and have blue eyes. Albinism (from Latin albus; extended etymology), more technically hypomelanism or hypomelanosis, is a form of hypopigmentary congenital disorder, characterized by a lack of melanin pigment in the eyes, skin and hair (or more rarely the eyes alone). ...
Basal cell carcinoma is a relatively benign form of skin cancer which arises from this layer of cells. Basal cell carcinoma (BCC) is the most common skin cancer. ...
Skin cancer is a malignant growth on the skin which can have many causes. ...
Additional images Cross-section of all skin layers. Image File history File linksMetadata Skin. ...
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External links | Integumentary system | Skin • Sweat glands • Sebaceous glands • Hair (Hair follicle) • Nails • Epidermis (Stratum corneum, Stratum lucidum, Stratum granulosum, Stratum spinosum, Stratum germinativum/basale) • Dermis • Subcutis For similarly-named academic institutions, see Boston (disambiguation). ...
A garden sign welcomes residents and visitors to Rogers Park as home of Loyola University Chicago. ...
In zootomy, the integumentary system is the external covering of the body, comprised of the skin, hair, feathers, scales, nails, sweat glands and their products (sweat and mucus). ...
In zootomy and dermatology, skin is the largest organ of the integumentary system made up of multiple layers of epithelial tissues that guard underlying muscles and organs. ...
Sweating (also called perspiration or sometimes transpiration) is the production and evaporation of a fluid, consisting primarily of water as well as a smaller amount of sodium chloride (the main constituent of table salt), that is excreted by the sweat glands in the skin of mammals. ...
Schematic view of a hair follicle with sebaceous gland. ...
A strand of human hair under magnification Hair is also the name of a musical, see respective articles for the stage production and the movie. ...
A hair follicle is part of the skin that grows hair by packing old cells together. ...
Anatomy In anatomy, a nail is a horn-like piece at the end of a humans or an animals finger or toe. ...
It has been suggested that this article or section be merged with skin. ...
The stratum corneum (the horny layer) is the outermost layer of the epidermis (the outermost layer of the skin). ...
The Stratum Lucidum is one of the layers of the Epidermis. ...
Stratum granulosum contains 3 to 5 rows of flattened cells whose cytoplasm contains small granules. ...
It is a multiple-layered arrangement of cuboidal cells containing molecular bridges that conect them to adjacent cells. ...
The dermis is a layer of skin beneath the epidermis that consists of connective tissue and cushions the body from stress and strain. ...
The distribution of the bloodvessels in the skin of the sole of the foot. ...
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