Key

B, bone

C, cortex

D, dermis

DS, dermal sheath

EP, epiphyseal plate

Epon, eponychium

HP, dermal papilla of hair follicle

Hypon, hyponychium M, medulla N, nail or nail plate NM, nail matrix NR, nail root PC, Pacinian corpuscles RS, root sheath

SL, stratum lucidum asterisks, cuticle of hair numbers: I, external root sheath; 2, Henle's layer; 3, Huxley's layer; 4, cuticle of inner root sheath; 5, future cuticle of the hair

I hi let) unten ta i y System

Hypon

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