Eleidin
Eleidin (pronounced: eh-lee-uh-din) is a clear intracellular substance found in the stratum lucidum, a layer of the epidermis in the skin. It is primarily responsible for the skin's water-proofing properties.
Etymology
The term "Eleidin" is derived from the Greek word "ēleídos", which means "olive oil" or "oil". This is likely due to the oily nature of the substance.
Function
Eleidin is a byproduct of keratohyalin degradation. It is found in the cells of the stratum lucidum, which is located between the stratum granulosum and the stratum corneum in the epidermis. The primary function of eleidin is to provide a barrier and prevent water loss from the body, contributing to the skin's water-proofing properties.
Related Terms
- Epidermis: The outermost layer of the skin, composed of the stratum corneum, stratum lucidum, stratum granulosum, stratum spinosum, and stratum basale.
- Stratum Lucidum: A thin, clear layer of dead skin cells in the epidermis, named for its translucent appearance under a microscope. It is in this layer that eleidin is found.
- Keratohyalin: A protein found in the granules of the stratum granulosum. It is involved in the process of keratinization, which is the formation of a protective layer of dead skin cells.
External links
- Medical encyclopedia article on Eleidin
- Wikipedia's article - Eleidin
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