Essentials of Diseases of the Skin / Including the Syphilodermata Arranged in the Form of Questions and Answers Prepared Especially for Students of Medicine

by Henry Weightman Stelwagon

a, a vascular papilla; b, a nervous papilla; c, a blood-vessel; d, a nerve fibre;
e, a tactile corpuscle.

(After Biesiadecki.)

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The Hair and Hair-Follicle.

Fig. 5.

A, shaft of the hair; B, root of the hair; C, cuticle of the hair; D, medullary substance of the hair.

E, external layer of the hair-follicle; F, middle layer of the hair-follicle; G, internal layer of the hair-follicle; H, papilla of the hair; I, external root-sheath; J, outer layer of the internal root-sheath; K, internal layer of the internal root-sheath.