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<div class='res-img'>[[File:Infographic Foreskin.jpg|Foreskin - Anatomy and function]]</div>
The word ''foreskin'' is a cognate of the German word ''Vorhaut''. The word ''prepuce'' is a cognate of the French word ''prépuce'', which is derived from Latin ''praeputium''. ''Foreskin'' is more commonally used in speech, while ''prepuce'' is more commonly seen in scientific literature.
The '''foreskin''' or '''prepuce''' is the double-layered fold of smooth muscle tissue, blood vessels, neurons, [[skin]], and [[mucosa| mucous membrane]] part of the [[penis]] that creates the [[preputial sac]], while covering and protecting the [[glans penis]] and the [[urinary meatus]].
* The inner foreskin and [[ridged band]] which is covered with mucosal membrane. ([[Mucosa]])
* The [[frenulum]] which connects the foreskin to the [[glans penis]] and usually limits retraction.
The inner and outer adult foreskin together contain about 15 square inches of skin.
===Foreskin in infancy and childhood===
* Foreskin extends beyond head: 6.4%<ref>Gebhard, P. H., Johnson, A. B., & Kinsey, A. C. (1998). Table 81. In: <i>The Kinsey Data: Marginal Tabulations of the 1938–1963 Interviews Conducted by the Institute for Sex Research.</i> Indiana University Press. </ref>
Please note that the last two categories, totalling 54.8%, provide complete covereage coverage of the [[glans penis]].