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Explore the structure and function of hair follicle's inner and outer root sheaths, consisting of distinct layers that protect hair growth.
The inner root sheath (IRS) also can be subdivided into three layers, the IRS cuticle, Huxley's, and outer Henle's layers. The last and outermost layers of the follicle include the vitreous, or glassy, layer; and finally the fibrous root sheath.
30 paź 2023 · Structure and layers of the skin. The hair follicle is a skin appendage located deep in the dermis of the skin. Its function is to produce hair and enclose the hair shaft. A hair follicle consists of two main layers, an inner (epithelial) root sheath and an outer (fibrous) root sheath.
30 lip 2023 · The inner root sheath (IRS) consists of the Henle layer, the Huxley layer, and the previously mentioned cuticle layer, which also helps affix the growing hair shaft to the follicle, a task bolstered by the production of keratins and trichohyalin by the IRS cells.
The hair root, which undergoes keratinization, is surrounded by two sheaths: the inner root sheath (IRS) and the outer root sheath (ORS). The ORS is continuous with the basal layer of...
From the upper section of the bulb to the upper part of the hair follicle, it presents a concentric circle-shaped layer, which is divided into three parts from inside to outside: hair shaft (HS), IRS, outer root sheath (ORS). The HS is the part exposed to the skin and is composed of keratinocytes.
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]
