What is the origin of hair called?
Hair only becomes visible on the surface of the scalp from the 28th week. The origin of the pilo-sebaceous follicle is both ectodermal — due to its epithelial component formed from the epidermis (the surface layer of the skin) — and mesodermal — due to its connective tissue component, known as the the dermal papilla.
What is the anatomy of hair?
Hair is a derivative of the epidermis and consists of two distinct parts: the follicle and the hair shaft. The follicle is the essential unit for the generation of hair. The hair shaft consists of a cortex and cuticle cells, and a medulla for some types of hairs.
What is the medulla in the hair?
The medulla, only present in thicker hair types, is the innermost layer of your hair. It consists of a soft, thin core of transparent cells and air spaces.
What are the different types of hair types?
What types of hair are there?
| Type 1 | Straight hair |
|---|---|
| Type 2 | Wavy hair |
| Type 3 | Curly hair |
| Type 4 | Coily hair |
What is 3C natural hair?
3C hair is made up of well-defined, tight corkscrews or coils with lots of strands densely packed together. Their circumference is the size of a pencil or straw. 3C curls have a fine to medium texture. This curl type is prone to dryness, tangles, and lack of curl definition.
What is the hair follicle called?
The hair bulb forms the base of the hair follicle. In the hair bulb, living cells divide and grow to build the hair shaft. Blood vessels nourish the cells in the hair bulb, and deliver hormones that modify hair growth and structure at different times of life.
What is a hair follicle composed of?
The hair follicle is made of multiple layers of cells that form from basal cells in the hair matrix and the hair root. Cells of the hair matrix divide and differentiate to form the layers of the hair.
What are the 3 parts of hair?
Each hair shaft is made up of two or three layers: the cuticle, the cortex, and sometimes the medulla. The cuticle is the outermost layer. Made of flattened cells that overlap like the tiles on a terra-cotta roof, the cuticle protects the inside of the hair shaft from damage.