Thick skin has five layers, also known as strata. These layers are:
- Stratum basale: The innermost layer, containing basal cells responsible for producing new skin cells.
- Stratum spinosum: A layer of cells connected by desmosomes, providing structural support and strength.
- Stratum granulosum: This layer contains keratin granules that help with water retention and skin barrier formation.
- Stratum lucidum: A translucent layer found only in thick skin, primarily present in the palms and soles.
- Stratum corneum: The outermost layer composed of dead, flattened cells filled with keratin, providing a tough, protective barrier.
These five layers work together to protect the body from external factors, regulate temperature, and maintain hydration.
