Inner root sheath
From Wikipedia, the free encyclopedia
The inner root sheath or internal root sheath of the hair follicle is located between the outer root sheath and the hair shaft.[1]
Layers
It is made of three layers:
- Henle's layer,
- Huxley's layer, and
- The cuticle.[2]
The inner root sheath serves to protect growing hair. [3]
Description
Henle's layer is the outermost layer of the inner root sheath, consisting of a single row of cubical cells. During his original examination, Henle believed the layer lacked nuclei because he viewed it at a level where it had already cornified.[3]
Huxley's layer is in the middle, made up of approximately two rows of flattened cells with granular protoplasm. The cuticle of the root sheath is in the center, continuous with the outermost layer of the hair fiber.[2]
See also
References
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- ^ James, William; Berger, Timothy; Elston, Dirk (2005) Andrews' Diseases of the Skin: Clinical Dermatology (10th ed.). Saunders. Page 8. Template:ISBN.
- ^ a b Page Module:Citation/CS1/styles.css has no content.Bailey, Frederick Randolph (1910), A text-book of histology, W. Wood, University of California, pp. 359–560
- ^ a b Page Module:Citation/CS1/styles.css has no content.Rajiv S Joshi (2011). "The Inner Root Sheath and the Men Associated with it Eponymically". Int J Trichology. 3 (1): 57–62. doi:10.4103/0974-7753.82119. PMC 3129131. PMID 21769243.
