a lock of hair
The inner portion of the hair is the cortex and the inner-most portion is the medulla.
The inner portion of the hair is the cortex and the inner-most portion is the medulla.
hair shaft
Hair Shaft
hair shaft
Hair shaft
The shaft
Hair root
The portion of hair where mitosis occurs is the hair bulb, which is located at the base of the hair follicle. This is where new hair cells are produced, and as they multiply and differentiate, they push older cells up the follicle, forming the hair shaft.
The bottom portion of a hair where DNA can be found is the hair follicle. This is the part of the hair embedded within the skin and contains cells with DNA. If the follicle is present on a hair sample, DNA analysis can be conducted to identify the individual it came from.
Ombre hair is darker on the top portion of the hair and lighter on the ends. It's best to get this done at a salon.
Shaft