Structure Of Hair Follicle - Hair Color - How Does Hair Growth Work

In this video we discuss the structure of hair, how does hair grow and how does hair color work? We also look at the function of the sebaceous gland and the function of the arrector pili muscle. Transcript/notes Hair structure, hair color and hair growth. Hair consists of 3 main sections, the hair bulb, the hair root and the hair shaft. The hair shaft is the top portion of the hair that extends out from the surface of the skin. The hair root extends from the bulb to the surface of the skin, and the