Which of the following lists the skin layers from outermost to innermost?

The correct answer accurately lists the layers of the skin from outermost to innermost, following the natural structure of the epidermis.

Starting with the stratum corneum, this is the outermost layer composed of dead skin cells that are continuously shed and replaced. Just beneath it, the stratum lucidum is a thin layer found mainly in the thick skin areas, providing additional protection. After that is the stratum granulosum, which consists of living cells that begin to keratinize, contributing to the barrier function of the skin. Next is the stratum spinosum, where the cells are more irregularly shaped and connected by desmosomes, providing strength and flexibility to the skin. Finally, the innermost layer is the stratum basale, where new skin cells are generated through mitosis. This foundational layer is crucial as it continuously replenishes the outer layers.

Understanding the correct order is essential for comprehending skin health, the processes of regeneration, and the effects of various treatments in manicure and pedicure practices.