Getting to The Root Part 2

the
hair
bulb

1.) Cuticle

2.) Cortex

3.) Medulla

Inner Root Sheath (I RS)
4.) IRS´s cuticle
5.) Huxley´s layer
6.) Henle´s layer

7.) Outer Root Sheath

8.) Dermal Papilla´s Cavity

(cont)

The closest layer to the hair fiber is known as the inner root sheath. The IRS helps mold the hair shaft. There are three layers that divide the inner root sheath: the cuticle, Huxley, and Henle.

The outer root sheath is the outermost layer surrounding the hair fiber. One of ORS task involves aiding the structure of the hair strand. When it comes to the formation of hair, the outer root sheath do not play a significant role.

Hair Bulb

Located deep inside the hair follicle, the bulb can be found in the lowest region of our hair strand. The hair bulb covers the dermal papilla. Some people refer to the hair bulb as the origin point. The hair bulb consists of active cells which create hair fibers that form our hair strand and is one of the few living parts of our hair.

Sebaceous Gland (Oil Gland)

The sebaceous gland is connected to the hair follicle. The oil gland is composed of various cells that produce lipids. One of the sebaceous gland´s task is to release and bring the sebum to the skin´s surface. Upon arriving at the surface, the sebum travels along the hair shaft. Oil glands of the skin, The sebaceous glands secrete an oily substance called sebum, which lubricates the hair and skin.

Arrector Pili Muscle

The final part of the hair root is the arrector pili muscle. Have you ever wondered how goose bumps, gooseflesh, occur? When the arrector pili muscle is stimulated it contracts and produces goose bumps. Some of the factors that can cause simulation include skin irritation, arousal, being emotionally upset, and exposure to cold temperatures. The arrector pili muscle also effects the hair strand when it contracts. The hair shaft stands erect when simulation occurs.

Some of the additional names the arrector pili muscle can be referred to as include erectores pilorum and pilomotor. The pilomotor can be described as a tiny, smooth muscle bundle that is attached to the hair follicle.

Can You Name The Parts?

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