Foreskin: Difference between revisions
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}}</ref> The adult foreskin frequently has prominent visible veins. | }}</ref> The adult foreskin frequently has prominent visible veins. | ||
The layer of [[dartos]] muscle is contained within the foreskin.<ref name="cold-taylor1999 /> It makes the foreskin rather stretchy. The dartos muscle keeps the foreskin snugly against the [[glans]]. The fibers of the [[dartos muscle form a whorl at the tip that functions as a sphincter. The sphincter opens to allow [[urine]] to flow out, but closes to protect the penis]] from foreign matter, contaminants, and pathogens.<ref name="lakshmanan-prakash1980"/><ref>{{REFjournal | The layer of [[dartos]] muscle is contained within the foreskin.<ref name="cold-taylor1999 /> It makes the foreskin rather stretchy. The dartos muscle keeps the foreskin snugly against the [[glans]]. The fibers of the [[dartos]] muscle form a whorl at the tip that functions as a sphincter. The sphincter opens to allow [[urine]] to flow out, but closes to protect the [[penis]] from foreign matter, contaminants, and pathogens.<ref name="lakshmanan-prakash1980"/><ref>{{REFjournal | ||
|last=Jefferson | |last=Jefferson | ||
|first= | |first= | ||