Pilus
Pilus est filamentum proteini quod e folliculo in dermi quorundam animalium excrescit. Pilus est una ex unicis mammalium proprietatibus. In homine, pilus etiam crinis, universi pili etiam capillus vel coma, vocantur.

Corpus humanum, praeter glabras cutis regiones, folliculis tegitur, quae crassum pilum terminalem et vellum efficiunt. Auctus pili, genera pili, et curatio pili multos homines tenent, sed pilus etiam est materia biologica magni momenti, plerumque in alpha-keratino consistens.

Bibliographia 
 Iyengar, B. 1998. "The hair follicle is a specialized UV receptor in human skin?" Bio Signals Recep. 7 (3): 188–94. . PMID 9672761. S2CID 46864921.
 Jablonski, N. G. 2006. Skin: a natural history. Berkeleiae Californiae: University of California Press.
 Rogers, Alan R., David Iltis, et Stephen Wooding. 2004. "Genetic variation at the MC1R locus and the time since loss of human body hair." Current Anthropology 45 (1): 105–108. .
 Tishkoff, S. A., E. Dietzsch, W. Speed, A. J. Pakstis, J. R. Kidd, K. Cheung, B. Bonne-Tamir, A. S. Santachiara-Benerecetti, et al. 1996. "Global patterns of linkage disequilibrium at the CD4 locus and modern human origins." Science 271 (5254): 1380–87. Bibcode:1996Sci...271.1380T. . PMID 8596909. S2CID 4266475.
 Valković, Vlado. 1988. Human Hair. Boca Raton Floridae: CRC Press. ISBN 0849348625.

Nexus externi 

 "How to measure the diameter of your own hair using a laser pointer."
 De chemia pilorum. Royal Society of Chemistry.
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Anatomia
Proteinae