Volos (Hair)

Hair is a thread-like outgrowth of the skin, which is its derivative. It consists of keratin, which provides strength and elasticity to the hair.

Hair development occurs inside the follicle, which resembles a cylinder in shape. Only the hair shaft, consisting of three layers, protrudes above the surface of the skin. The outer cuticle is formed by flat cells that cover the hair and protect it from damage. The cortex contains keratin and pigment, which determines the color of the hair. In the center of the hair there is a medulla rich in trichohyalin.

The hair root is located deep in the skin and forms a bulb. The hair root is located in the follicle, which consists of the hair root and the connective tissue papilla. The follicle contains cells that ensure hair growth.

Overall, hair is an important element of our body and plays an important role in protecting the skin from external influences. They are also a key element of our appearance and can influence our mood and self-esteem.

Hair is a thread-like keratinized outgrowth of the epidermis of the skin, which is its derivative and develops inside the hair follicle. The hair root is located in the thickness of the skin and forms a bulb, which is located in the hair follicle.

The hair shaft consists of three main layers: the outer cuticle, the cortex, and the central medulla. The cuticle is formed by flat cuticular cells that protect the hair from damage and ensure its smoothness. The cortex consists of horny scales and contains a pigment that determines the color of the hair and ensures its airiness. The medulla contains cells rich in trichohyalin, which provide strength and flexibility to the hair.

The hair root is located in the hair follicle, which resembles a cylinder in appearance and consists of a root sheath and a hair bursa. Dividing matrix cells are located at the bottom of the follicle, above the connective tissue papilla. These cells are responsible for hair growth and renewal.

The hair follicle is surrounded by skin, which contains sebaceous glands that produce sebum. Sebum protects hair from damage and gives it shine.

In general, hair is an important element of our body, which provides us with protection, thermal insulation and aesthetic appearance.

Hair is one of the most beautiful, but at the same time complex biological materials on Earth. Each hair has a complex life cycle, starting at the source where the cell divides to become the follicular ray, then the bulb, and then the hair shaft. In this article we will look at the main aspects of the life of hair, its development, structure and function.

The hair follicle is the main structure in which hair originates and lives. It has a cylindrical shape, consisting of many cysteine ​​cushions that are filled with keratin. Such pillows fill at birth, grow and die when the already mature hair follicles begin to capture material to support the hair shaft. The capture of keratin occurs due to the growing scales originating from the upper part of the bulb. As soon as the hair reaches a certain length, the cells stop dividing and keratin scales grow. This is partly why the natural odor of all hair tends to become unpleasant over time.

When growth is complete, the keratin pads develop into hair shafts and descend to the surface of the scalp (also known as kwama). These rods are made up of three parts: for the most part they carry wavy, short keratin cells called cuticles, then they go to the peel. The core of the rod encloses a fibrous element called the brain in this hole. Brain cells contain color pigment. Cuticle immersion allows the hair shaft to integrate the cuticles of its other wavy cells, ensuring that all wavy cells hold each other together. This process ensures that your entire hair follicle does not split and act as one hair, leading to gray hair.

The different aspects of hair are complex forms, not only because they grow in the skin, but also because of the functions they perform. Hair