. The Cambridge natural history. Zoology. Fig. 1.—A, Section of human skin. Go, Dermis ; D, sebaceous glands ; /•', fat in dermis ; G, vessels in dermis ; GP, vascular papillae ; H, hair ; N, nerves in dermis ; NP, nervous papillae ; Sc, horny layer of epidermis ; SI), sweat gland; iz»\ duct of sweat gland : SM, Malpighian layer. B, Longitudinal sec- tion through a hair (diagi-ammatic). Ap, Band of muscular fibres inserted into the liair-follicle ; Co, corium (dermis) ; 1, sebaceous gland ; HP, hair-papilla with vessels in its in- terior ; M, medullary substance (pith of the hair ; O, cuticle
. The Cambridge natural history. Zoology. Fig. 1.—A, Section of human skin. Go, Dermis ; D, sebaceous glands ; /•', fat in dermis ; G, vessels in dermis ; GP, vascular papillae ; H, hair ; N, nerves in dermis ; NP, nervous papillae ; Sc, horny layer of epidermis ; SI), sweat gland; iz»\ duct of sweat gland : SM, Malpighian layer. B, Longitudinal sec- tion through a hair (diagi-ammatic). Ap, Band of muscular fibres inserted into the liair-follicle ; Co, corium (dermis) ; 1, sebaceous gland ; HP, hair-papilla with vessels in its in- terior ; M, medullary substance (pith of the hair ; O, cuticle of root-sheath : /'. cortical layer ; Sc, horny layer of epidermis ; Sch, Hair shaft ; SM, Mal- pighian layer of epidermis ; ', ^, outer and inner layers of root-sheath Armtomij.). ComiMrative chitinous skin of the Crustacea. It will be necessary, therefore, to enter into the microscopical structure and development of the mammalian hair. Hair is found in every mammal. The first appcMrance of a hair is a slight thickening of the stratum Malpighii of the epidermis, the cells taking part in this being. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Harmer, S. F. (Sidney Frederic), Sir, 1862-; Shipley, A. E. (Arthur Everett), Sir, 1861-1927. London : Macmillan and Co. ; New York : The Macmillan Company
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Keywords: ., bookauthorsh, bookcentury1800, bookdecade1890, booksubjectzoology
