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  2. Hair follicle - Wikipedia

    en.wikipedia.org/wiki/Hair_follicle

    The hair follicle is an organ found in mammalian skin. [1] It resides in the dermal layer of the skin and is made up of 20 different cell types, each with distinct functions. The hair follicle regulates hair growth via a complex interaction between hormones, neuropeptides, and immune cells. [1]

  3. Inner root sheath - Wikipedia

    en.wikipedia.org/wiki/Inner_root_sheath

    The inner root sheath or internal root sheath of the hair follicle is located between the outer root sheath and the hair shaft. [1] It is made of three layers: Henle's layer, Huxley's layer, and the cuticle. [2] The inner root sheaf serves to protect growing hair. [3]

  4. Hair - Wikipedia

    en.wikipedia.org/wiki/Hair

    Hair-follicle cycling Hair grows at different speeds and different lengths. Its composition causes different colors and textures, which influence how long the hair strands grow. Marianne Ernst, a German "Long hair model". The three stages of hair growth are the anagen, catagen, and telogen phases. Each strand of hair on the human body is at its ...

  5. Hair Loss: How Much is Normal? And When Should You See ... - AOL

    www.aol.com/hair-loss-much-normal-see-202600672.html

    "Hair actively grows during this phase, with cells dividing rapidly at the root of the hair follicle," says Rae Lynne Kinler, MD, a hair transplant surgeon at Ziering Medical. "The hair shaft ...

  6. Sebaceous gland - Wikipedia

    en.wikipedia.org/wiki/Sebaceous_gland

    The structure, consisting of hair, hair follicles, arrector pili muscles, and sebaceous glands, is an epidermal invagination known as a pilosebaceous unit. [ 4 ] Sebaceous glands are also found in hairless areas ( glabrous skin ) of the eyelids , nose , penis , labia minora , the inner mucosal membrane of the cheek , and nipples . [ 4 ]

  7. Root sheath (hair) - Wikipedia

    en.wikipedia.org/wiki/Root_sheath_(hair)

    The outer root sheath corresponds with the stratum mucosum (stratum germinativum and stratum spinosum) [1] of the epidermis, and resembles it in the rounded form and soft character of its cells; at the bottom of the hair follicle these cells become continuous with those of the root of the hair.

  8. Human hair growth - Wikipedia

    en.wikipedia.org/wiki/Human_hair_growth

    Hair-follicle cycling Hair grows at different speeds and different lengths. Its composition causes different colors and textures, which influence how long the hair strands grow. Marianne Ernst, a German "long hair model" The three stages of hair growth are the anagen, catagen, and telogen phases. Each strand of hair on the human body is at its ...

  9. The Ins & Outs of Male Pattern Baldness - AOL

    www.aol.com/lifestyle/ins-outs-male-pattern...

    Male pattern baldness (androgenetic alopecia) is a common issue that can happen to men of all ages. It can cause diffuse hair loss across the entire scalp, a receding hairline, a bald patch, or a ...