Stratum lucidum
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| Stratum lucidum | |
|---|---|
 | |
| Section of epidermis. (Stratum lucidum labeled at left, second from top.) | |
| Latin | stratum lucidum epidermidis |
| Gray's | subject #234 1064 |
| Dorlands/Elsevier | s_25/12761353 |
- For the layer of the hippocampus, see stratum lucidum of hippocampus.
The stratum lucidum (Latin for "clear layer") is a thin, clear layer of dead skin cells in the epidermis, and is named for its translucent appearance under a microscope. It contains a clear substance called eleidin, which eventually becomes keratin. This layer is only found on the soles of the feet and the palms of the hands.It is found beneath the stratum corneum of thick skin, such as that on the palms of the hands and the soles of the feet. The keratinocytes of the stratum lucidum do not feature distinct boundaries and are filled with eleidin, an intermediate form of keratin.
The cells of the stratum lucidum are flattened and contain an oily substance that is thought to be the result of lysosome disintegration. It is this substance that gives the stratum lucidum its waterproof properties, and, thus, it is also called the barrier layer of the skin.
External links
- Histology at Boston University 08422loa - "Integument: thick skin"
Integumentary system | |||||||||
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| Skin layers | cutis: Epidermis (Stratum corneum, Stratum lucidum, Stratum granulosum, Stratum spinosum, Stratum germinativum/basale) • Dermis Subcutaneous tissue | ||||||||
| Skin appendages |
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Acknowledgement and Attribution Regarding Sources of Content
Some of the initial content on this page may be incorporated in part from copyleft sources in the public domain including wikis such as Wikipedia and AskDrWiki. Drug information for patients came from the The National Library of Medicine. Infectious disease information may have come from the Centers for Disease Control (CDC). Differential Diagnoses are drawn from clinicians as well as an amalgamation of 3 sources: 1.The Disease Database; 2. Kahan, Scott, Smith, Ellen G. In A Page: Signs and Symptoms. Malden, Massachusetts: Blackwell Publishing, 2004:3; 3. Sailer, Christian, Wasner, Susanne. Differential Diagnosis Pocket. Hermosa Beach, CA: Borm Bruckmeir Publishing LLC, 2002:7 .
