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Hair Shaft  - Analysis of the hair fibers or hair shafts The hair fiber or the hair shaft is the portion of hair that projects out of the skin of the scalp. It is a cylindrical, keratinized and often pigmented filament. The hair shaft structure consists of dead cells that have been filled with hard keratins and binding materials, combined with small amounts of water. The hair fiber or shaft structure can be divided into three parts: Cuticle – the outermost part Cortex – the middle portion Medulla- the inner most portion. Out of the above three the medulla is present only in the exceptionally large terminal hairs where the hair diameter is more than 60 microns. Hair Shaft -  the cuticle   The cuticle is the outermost layer of the hair shaft. The cuticle is a single row of cells, which may be identified at the level of the lower bulb. As the cuticle cells sweep upward as a single row from the matrix, they are seen in the upper part of the bulb. After reaching midway in ...

Structure of Hair - Hair Structure Your hair are important contributors to your total look and given the right care they can make you look great. If neglected they can distract one from your appearance. Hair, is an integral part of the structure of your skin and like your skin, it changes with passage of time. A single strand of hair is made up of several components:- The hair shaft : The visible part of the hair is dead. It grows from the narrow tube below the surface of the scalp which is called a follicle. The hair follicle: (sac)- is the portion of hair below the skin's surface, is a single structure which lives and grows at an average rate of 1-3 centimeters (1/2 to 1") per month. At the base of hair follicle lie papilla, which eventually form hair. Sebaceous glands: Next to each follicle produce natural oil that keeps the hair lubricated and shiny. The hair extends through epidermis into the dermis, from where it receives its blood supply and sensitivity. Structure of H...