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English: The following video shows a cross-section of the hair follicle where hair grows, hair growth from its initial phase and the basic structure of a hair. 1. Hair follicle 2. Veins 3. Arteries 4. Hair bulb 5. Follicle papilla 6. Mother cells 7. Cells (without core) 8. Cells (extended) 9. Sebum 10. Sebaceous gland 1a. Cuticle 2a. Cortex 3a ...
English: The following video shows the three hair growing phases (anagen, catagen and telogen). Anagen phase: is the growth phase, hair grows from the root. Catagen phase: is the transition phase, the hair follicle shrinks and detaches from the skin. Telogen phase: is the resting phase, during wich a new follicle begings development
There are many structures that make up the hair follicle. Anatomically, the triad of hair follicle, sebaceous gland and arrector pili muscle make up the pilosebaceous unit. [1] A hair follicle consists of : The papilla is a large structure at the base of the hair follicle. [4] The papilla is made up mainly of connective tissue and a capillary ...
The second proposed mechanism involves the hair follicle growth cycle. Human hair follicles follow a growth cycle that has three stages: anagen, catagen, and telogen. [16] Active growth of the hair follicle occurs during the anagen phase. During the catagen phase, the hair follicle undergoes a process to prepare for hair shedding.
The original hair type chart, also known as the hair typing system, was created by Andre Walker, Oprah Winfrey's hairstylist, in the 1990s. He debuted the system on Winfrey's show to promote his ...
Lanugo is very thin, soft, usually unpigmented hair that is sometimes found on the body of a fetus or newborn.It is the first hair to be produced by the fetal hair follicles, and it usually appears around sixteen weeks of gestation and is abundant by week twenty.
The following other wikis use this file: Usage on ar.wikipedia.org ويكيبيديا:ورشة الصور/أرشيف 18; Usage on az.wikipedia.org
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