RMA Northstar Practice Exam 2025 - Free RMA Practice Questions and Study Guide

The layers of the skin are correctly ordered from superficial to deep as the epidermis, dermis, and then the subcutaneous layer. The epidermis is the outermost layer of skin, responsible for providing a protective barrier and containing cells that produce keratin and melanin. Below the epidermis lies the dermis, which contains connective tissue, blood vessels, hair follicles, and glands, playing a critical role in the skin's strength and elasticity. The deepest layer, the subcutaneous tissue (or hypodermis), consists of fat and connective tissue, serving as an insulator and shock absorber while anchoring the skin to underlying structures such as muscles and bones.

This ordering is important for understanding skin anatomy, particularly when it comes to procedures like injections or understanding how skin conditions might affect different layers. Recognizing the structural and functional distinctions between these layers is essential for various medical and cosmetic practices.