Hair follicles are skin organs usually found in mammals that are responsible for the production of the hair. This process occurs in different types of phases and these phases include growth which is known as anagen, the second one is cessation phase which is catagen and finally Rest phase well known as Telogen.
Hair is a very interesting part of the body which is also made up of four different parts namely Papilla, Matrix, Root Sheath as well as Bulge.
The Papilla is a large structure at the base of the hair follicle which is made up mainly of Connective Tissue and a Capillary Loop and cell hardly divide in the Papilla.
According to Researchers, around the papilla is the Hair Matrix collection of epithelial cells often interspersed with the pigment-producing cells. Mellanocitel Cell division in the hair matrix produces the cells that form the major structures of the hair fibre and the inner root sheath.
The hair matrix epithelium is one of the fastest growing cell populations in the human body, which is why some forms of Chemotherapy or Radiotherapy, that kill dividing cells, may lead to temporary Hair loss. The papilla is usually ovoid or pear shaped. The matrix wraps completely around it, except for a short stalk-like connection to the surrounding connective tissue. This provides access for the capillary
The root sheath is composed of an external and internal root sheath. The external root sheath appears empty with cuboids cells when stained with H&E stain. The internal root sheath is composed of three layers, Henley’s layer, Huxley’s layer, and an internal cuticle that is continuous with the outermost layer of the hair fibre. The bulge is located in the outer root sheath at the insertion point of the arrector pili muscle. It houses several types of stem cells, which supply the entire hair follicle with new cells, and take part in healing the epidermis after a wound.
I will not be able to give you all the details about the interesting parts of hair but I promise after doing my own deep research, I will be putting all the information in my next book about Hair.Hair is so well alive with living cells that together construct the follicle therefore, it is extremely important to feed on a very healthy diet in order to provide hair with enough nutrients to build it as well giving it strength. Foods like dark green leafy vegetables, high protein foods because basically hair is a protein, drinking as much water as possible as well as fatty acids like vitamin E, Vitamin A for Beta carotene to keep the scalp cells fuelled preventing it from dryness.