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The squamous cell layer is located above the basal layer, and is also known as the stratum spinosum or “spiny layer” due to the fact that the cells are held together with spiny projections. Within this layer are the basal cells that have been pushed upward, however these maturing cells are now called squamous cells, or keratinocytes. Keratinocytes produce keratin, a tough, protective protein that makes up the majority of the structure of the skin, hair, and nails.

The squamous cell layer is the thickest layer of the epidermis, and is involved in the transfer of certain substances in and out of the body. The squamous cell layer also contains cells called Langerhans cells. These cells attach themselves to antigens that invade damaged skin and alert the immune system to their presence.

See also:

* Epidermis

* Basal Cell Layer

* Skin Conditions

* Skin Care

* Skin Functions

* Lymphedema Skin Infections

* Lymphedema Fungal Infections

* Dermatofibromas

* Impetigo

* Mycetoma Fungal Infection

* Skin Care, conditions, complications

* Skin Glossary

glossary/squamous_cell_layer.txt · Last modified: 2012/10/16 14:40 (external edit)