Article · Wikipedia archive · Last revised Jun 16, 2026

Outer root sheath

The outer root sheath or external root sheath of the hair follicle encloses the inner root sheath and hair shaft. It is continuous with the basal layer of the interfollicular epidermis (skin).

Last revised

Jun 16, 2026

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≈ 1 min

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The outer root sheath or external root sheath of the hair follicle encloses the inner root sheath and hair shaft.¹ It is continuous with the basal layer of the interfollicular epidermis (skin).

See also

See also

List of distinct cell types in the adult human body

References

References

James, William; Berger, Timothy; Elston, Dirk (2005) Andrews' Diseases of the Skin: Clinical Dermatology (10th ed.). Saunders. Page 8. ISBN 0-7216-2921-0.