outer root sheath

Hair is a defining feature of human anatomy, originating from hair follicles that are embedded within the skin's layers, starting in the epidermis. These follicles are complex structures with multiple components that work together to support hair growth, protection, and sensory functions. This article provides an in-depth look at the anatomical structure of hair, focusing on a detailed diagram that labels each part of the hair follicle. By understanding the roles of these components, we gain insight into hair growth cycles, their physical characteristics, and their significance in overall skin health.

The hair follicle, a complex structure embedded in the skin, is captured in this cross-sectional micrograph at 4x magnification, modified from work by “kilbad”/Wikimedia Commons, showcasing its intricate cellular organization. Featuring the hair matrix, inner root sheath, and outer root sheath, the hair follicle plays a vital role in hair growth and skin health. This article delves into the anatomical structure of the hair follicle, its physical characteristics, and its essential functions in hair production. By exploring this micrograph, we aim to provide a comprehensive understanding of the hair follicle's role in human physiology and its significance in maintaining healthy hair.