The hair shaft consists of the cuticle, the cortex and the medulla. The cuticle is the outer layer of... Beauty Solutions - Page 13 by Tanushree Podder - 2000 - 152 pages Limited preview - About this book
...microscope. She saw the three hairs lined up together. "Each hair has three layers," Dr. Smiley said. "The cuticle, the cortex, and the medulla. "The cuticle is the outer layer of hair. "It protects the cortex and the medulla. "The cortex determines the color of the hair. "The medulla...