Which layers make up the skin?

The layers that make up the skin include the epidermis, dermis, and subcutaneous layer. The epidermis is the outermost layer, providing a protective barrier and playing a crucial role in the skin's overall health, as it contains cells that continuously renew themselves. Below the epidermis lies the dermis, which contains connective tissue, blood vessels, hair follicles, and glands, contributing to the skin's strength and elasticity. The subcutaneous layer, also known as the hypodermis, is beneath the dermis and serves as an insulator, protecting underlying muscles and bones while also providing energy storage through fat tissue.

This answer captures the full complexity of the skin's structure, emphasizing the specific roles of each layer in maintaining skin health and function. The other choices listed either include incorrect combinations of layers or omit key components of the skin's anatomy.