Outer root sheath

The outer 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).

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.

Skin and related structures

Epidermis	Stratum corneum Stratum lucidum Stratum granulosum Stratum spinosum Stratum basale
Basement membrane	Basal keratinocyte Lamina lucida Lamina densa
Dermis	Papillary Dermal papillae Reticular

Subcutaneous tissue

Root sheath	Outer root sheath Inner root sheath Henle's layer Huxley's layer
Hair shaft	Cuticle Cortex Medulla Bulb with matrix cells Hair follicle
Muscle	Arrector pili muscle
Pilosebaceous unit	Hair sebaceous gland

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