¿Para qué es la piel?

The video explains how human skin, though seemingly soft, acts as a protective barrier similar to the scales of animals like pangolins. It describes the production of skin cells in the epidermis, their journey to the surface, and their transformation into a protective layer. The skin's barrier effectively prevents bacteria, fungi, and viruses from penetrating, while fats deter microbes. Despite its protective role, the brain is crucial in avoiding larger threats, unlike the physical defenses of animal scales.

Describe the journey of skin cells from their formation to the surface.

What role does the brain play in relation to the skin's protective functions?