Epidermis

 

The epidermis is the outermost of the skin's three layers, with the dermis and hypodermis being the innermost. The epidermis layer protects the body against infection by pathogens in the environment and regulates the quantity of water lost to the atmosphere through transepidermal water loss.

The epidermis is made up of many layers of flattened cells that sit on top of a base layer (stratum basale) made up of perpendicularly aligned columnar cells. The basal layer's stem cells give rise to the layers of cells. The human epidermis, particularly a stratified squamous epithelium, is a well-known example of epithelium.

All of the body's surfaces are covered by skin. An average adult's skin weighs 8-10 pounds and covers around 22 square feet. The aim of this organ is to protect the body from damage, infection, heat, and cold, as well as to store water, fat, and vitamins. Every four weeks or so, the human skin gets renewed.

Considering your skin as an organ rather than a tool to be used and abused puts things in perspective. Your skin is a remarkably durable organ that, for the most part, can withstand almost any sort of abuse. The body's barrier is the skin, which is robust enough to withstand all kinds of environmental assaults while also being delicate enough to feel a breeze.