Unlocking The Mysteries Of Hair Anatomy - What You Need To Know

Author Name : Dr. PRAMOD YERNE

Dermatology

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Introduction

Have you ever wondered why your hair looks the way it does? Or why you have split ends even though you recently got a haircut? It’s time to unlock the mysteries of hair anatomy and learn what you need to know. From follicles to the outermost layers, understanding the basics of hair anatomy can help you make sense of your hair woes. Whether it’s identifying clogged pores or finding out what causes frizzy locks, this blog post will cover all the important facts about your hair. Keep reading to find out more!

What is hair made of?

Hair is made of a protein called keratin. Keratin is also found in nails and in the outer layer of skin. The hair shaft, which is the part of the hair that you see above the skin, is made up of dead cells. The cells are filled with keratin and are held together by disulfide bridges. The cortex is the middle layer of the hair shaft and it contains pigment granules that give hair its color. The medulla is the innermost layer of the hair shaft and it's made up of air spaces.

The structure of a hair follicle

The hair follicle is a small pocket in the skin that holds the base of the hair shaft. The hair follicle extends from the surface of the skin down to the dermis, where it attaches to a tiny blood vessel called a capillary.

The structure of the hair follicle is quite complex. The outermost layer of the skin, the epidermis, contains cells that produce keratin, a tough protein that makes up the majority of our hair. Underneath the epidermis is the dermis, which contains blood vessels, nerves, and collagen fibers.

At the base of the hair follicle is a tiny bulb-shaped structure called the papilla. The papilla is made up of cells that produce keratinocytes, which are responsible for creating new cells that will eventually become part of the hair shaft.

Surrounding the papilla is a thin layer of tissue called the matrix. The matrix is where most of the growth and activity in the hair follicle takes place. It is here that new cells are produced and old ones are pushed outwards to create the growing hair shaft.

The walls of the matrix are made up of cells called melanocytes. Melanocytes produce pigment, which gives our hair its color. Finally, there are also sebaceous glands adjacent to each hair follicle. These glands produce an oily substance called sebum, which helps to keep our scalp and hair moisturized

The hair growth cycle

Your hair is in a never-ending growth cycle, made up of three distinct phases: anagen, catagen, and telogen.

Anagen: This active growth phase can last anywhere from two to eight years, during which time your hair grows about half an inch per month.

Catagen: This brief transitionalphase lasts only about two weeks. Your hair follicle shrinks and detaches from the blood supply that nourishes it.

Telogen: The final resting phase lasts around 100 days, during which your hair doesn’t grow at all. At the end of this phase, your hair falls out and a new anagen phase begins.

Common hair disorders

There are a number of different hair disorders that can affect both men and women. Some of the more common disorders include:

Alopecia: This is the medical term for hair loss. There are several different types of alopecia, but the most common is androgenetic alopecia, which affects both men and women. This type of hair loss is usually genetic and cannot be cured. However, there are treatments available that can help to slow down the progression of hair loss or even regrow lost hair.

Hirsutism: This is a condition whereby women experience abnormal growth of facial and body hair. It is caused by an excess of male hormones in the body and can often be treated with medication.

Dandruff: Dandruff is a very common scalp condition characterised by dry, flaky skin on the scalp. It is not dangerous but can be very embarrassing and annoying. There are a number of over-the-counter treatments available that can help to control dandruff.

Split ends: Split ends occur when the protective outer layer of the hair shaft becomes damaged, leaving the inner core of the hair exposed. This can happen due to excessive heat styling, chemical processing or simply due to damage from brushing or combing. Split ends cannot be repaired but they can be prevented by using proper haircare techniques and products.

Conclusion

Knowing the different parts of hair anatomy and how they work together can help you better understand your own unique head of hair, as well as give you a glimpse into what makes each type of hair unique. With this knowledge, you’ll be able to make informed decisions about which products or treatments will best suit your needs and manage any issues that may arise along the way. The more educated we are about our bodies and our individual characteristics, the easier it is to maintain positive self-image and healthy habits.


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