Cuticle (hair)

The hair cuticle is the outermost part of the hair shaft.^[1] It is formed from dead cells, overlapping in layers, which form scales that gives the hair shaft strength and provide protection for it.^[2]^[3] Although the cuticle is the outermost layer of the hair, it does not give the hair its color because it has no melanin, which is the pigment responsible; the color of a person's hair depends on what type of melanin they have, which is found in the cortex.^[4]

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.
↑ "Hair!". Worsleyschool.net. Retrieved 2016-06-13.
↑ "Hair". British Medical Association Complete Family Health Encyclopedia. Dorling Kindersley Limited. 1990.
↑ "Hair biology - hair fiber". Keratin.com. Retrieved 2013-08-18.

Skin and related structures

Skin

Epidermis	Stratum corneum Stratum lucidum Stratum granulosum Stratum spinosum Stratum basale

Basement membrane	Basal keratinocyte Lamina lucida Lamina densa

Dermis	Papillary Dermal papillae Reticular

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

Nail

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