Inner root sheath

From Wikipedia, the free encyclopedia
Jump to navigation Jump to search

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]

Description

[edit | edit source]

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]

References

[edit | edit source]
  1. ^ James, William; Berger, Timothy; Elston, Dirk (2005) Andrews' Diseases of the Skin: Clinical Dermatology (10th ed.). Saunders. Page 8. Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value)..
  2. ^ a b Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).
  3. ^ a b Lua error in Module:Citation/CS1/Configuration at line 2172: attempt to index field '?' (a nil value).