Cross-section of a human hair Small 159×320 Medium 317×640 Large 507×1024 Download TIFF Original 1189×2400 | (1.2 MB) Description "Cross-section of One Half of a Human Hair. A hair is made up of horny cells of the outer layer of the skin altered in shape and structure." — Blaisedell, 1904 Keywords anatomy, cell, dermis, hair Galleries Human Skin, Hair, and Nails Source: Albert F. Blaisedell Our bodies and How We Live (Boston: Ginn &, 1904) 193
