What are the three layers of the skin in order from superficial to deep?

The three layers of the skin, listed from superficial to deep, are arranged as follows: the epidermis, dermis, and hypodermis. The epidermis is the outermost layer, composed primarily of keratinized cells, providing a protective barrier against environmental factors. Beneath the epidermis lies the dermis, which contains blood vessels, nerve endings, hair follicles, and connective tissue that provide strength and elasticity to the skin. Finally, the hypodermis, also known as the subcutaneous layer, is located beneath the dermis and consists mainly of adipose tissue and connective tissue, serving to insulate the body and anchor the skin to underlying structures such as muscles and bones. This hierarchical arrangement is essential for the skin's function in protection, sensation, and thermoregulation.