Stratum spinosum

/stɹˈɑːtəm spˈɪnɒsəm/

/stɹˈɑːɾəm spˈɪnɑːsəm/

Stratum spinosum

a layer of the epidermis (outermost layer of the skin) composed of keratinocytes that play a role in the skin's barrier function and provide structural support to the skin

What is "stratum spinosum"?

The stratum spinosum, also known as the spiny layer, is located between the stratum granulosum and the stratum basale in the epidermis. It is characterized by its unique appearance, with cells appearing spiky or prickly due to the presence of desmosomes. These desmosomes help hold the cells together, contributing to the overall strength and integrity of the skin. The stratum spinosum is involved in the production of keratinocytes, which are essential for the skin's structure and protection.

Examples

1. Starting from the deepest layer and working out, there is the Stratum Basale, the Stratum Spinosum, the Stratum Granulosum, the Stratum Lucidum and the Stratum Corneum.

2. This fatigue causes a split in the epidermis that usually resides at the layer of the Stratum Spinosum.