+22 Hair Shaft 2023. Web a hair shaft defect is any structural abnormality of the hair shaft. The hair root is in the skin and extends down to the deeper layers of the skin.
Others lack fragility but alter the appearance or texture of the hair. Web diagram of the hair shaft, indicating medulla (innermost), cortex, and cuticle (exterior.) anatomy of hair. Its function is to produce hair and enclose the hair shaft.
