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Anatomy

Hair facts you need to know


Suffering from hair loss or thinning? Discover how hair anatomy, including the follicle and shaft, plays a crucial role in the hair growth cycle. 


Hair consists of two key components: the hair follicle and hair shaft.



HAIR FOLLICLE

• Description:

A tube-like structure located in the skin that encloses the hair root.

• Components:

- Bulb: The base of the follicle, where hair growth originates.

- Dermal Papilla: Supplies nutrients and growth signals to the hair.

- Sebaceous Glands: Produce oil to condition the hair and scalp.

- Arrector Pili Muscle: Small muscle causing hair to stand (goosebumps) when contracted.




HAIR SHAFT

• Description:

The visible part of the hair that extends above the skin's surface.

• Layers:

- Cuticle: The outermost layer, composed of overlapping cells that protect the hair.

- Cortex: The middle layer, providing strength, color, and texture to the hair.

- Medulla: The innermost layer, which may be absent in finer hair.



Both the hair shaft and hair follicle are both derivatives of the skin. The essential unit for the generation of hair is the follicle. Hair follicles have a continuous growth and rest cycle, which is referred to as the hair cycle. The hair shaft is the visible hair that grows out of the follicles and consists of keratin.


There are approximately 100,000 hair follicles on the scalp and it is normal to lose up to 100 hairs each day and usually, the lost hair grows back. The duration of growth and rest phases is affected by the endocrine, vascular and nervous systems in addition to other systems in the body. Many other factors, including age and nutrition, can also impact this cycle.


Hair loss is a very common problem and affects approximately 50% of men and women in their lifetime. Luckily, at Springs Hair Restoration, we have surgical solutions and non-surgical solutions for hair loss in men and hair loss in women. Our offices, located at Sandy Springs and Johns Creek, are easily accessible to patients in the Metro Atlanta and Greater Atlanta areas, including Atlanta, Alpharetta, Cumming, Roswell, Duluth, Dunwoody, Marietta, and more near by cities.

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