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'''Penile skin''' is the skin which covers the whole male [[penis]]. It consists of the [[shaft skin]], the [[scrotal skin]] and the [[foreskin]].
It has two important characteristics, apparent only on [[erection]]:
# Penile skin tenses, stiffens and shortens, firming up the connection between [[shaft skin]] and ridged band. This change allows for the transmission of movement from the base of the erect [[penis]] to the [[ridged band]].
# Penile skin undergoes a marked frictional change, brought about by stiff, forward-pointing [[skin]] folds. The mechanism is similar to that which raises goosebumps.
The changes in penile skin are brought about by contraction of the [[Dartos]] muscle. Between them, stiffening and frictionality ensure that the ridged band is instantly alerted to changes in position of the [[penis]] within the [[vagina]].
[[Category:Physiology]]
[[Category:Term]]