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<br><br>
<br><b>=== What Happens to Your Penis As You Age? A Doctor Explains</b>===
* [[Gliding action]]
formattings
}}</ref> The penis is also known as the '''phallus'''.
The body of the penis consists of three cylindrical-shaped masses of erectile tissue which run the length of the penis. Two of the masses lie alongside each other and end behind the head of the penis. The third mass lies underneath them. This latter mass contains the [[urethra]]. The penis terminates in an oval or cone-shaped body, the [[glans penis]], which contains the exterior opening of the [[urethra]], or [[meatus]].<ref name="farlex2003" /> The final part of the penis is the [[foreskin]], also called the prepuce.
===Foreskin===
|accessdate=2024-09-25
}}</ref> and occurs after [[puberty]].
== Innervation ==
The normal [[foreskinned]] penis — the organ of copulation — is heavily innervated with afferent<ref>{{REFweb
|date=2003
|accessdate=2023-11-24
}}</ref> nerves — meaning that sensation, which is needed for male sexual function, is transmitted to the spinal cord and/or central nervous system. The penis is also innervated by the sympathetic autonomic nervous system (SAMS) and parasympathetic autonomic nervous system (PAMS).<ref name="cepeda2023">{{REFjournal
|last=Cepeda-Emiliani
|first=
|DOI=10.1038/s41443-022-00561-9
|accessdate=2023-11-24
}}</ref> The penis is innervated by both dorsal and perineal nerves.<ref name="cepeda2023" />
The innervation in the tube of [[foreskin]] translates movement and stretching into pleasurable, erogenous sensation.<ref name="garcía-mesa2021">{{REFjournal
|DOI=10.1111/joa.13481
|accessdate=2023-11-26
}}</ref> <ref>{{REFweb
|url=https://intactamerica.org/what-do-the-eyelids-lips-fingertips-the-intact-penis-have-in-common/
|title=What Do The Eyelids, Lips, Fingertips & The Intact Penis Have in Common?
|accessdate=2024-02-18
}}</ref>
===The frenular delta===
[[Ken McGrath| McGrath]] (2001) described the frenular delta on the ventral side of the penis as the most sensitive part of the penis.<ref>{{REFbook
|note=
}}</ref>
[[Alfonso Cepeda-Emiliani| Cepeda-Emiliani]] et al. (2025) published the most complete review of penile innervation thus far. They confirmed that the frenulal delta is the most erogenously sensitive part of the penis and compared it to the female "G-spot".<ref name="cepeda2025">{{REFjournal
|last=Cepeda-Emiliani
|quote=
}}</ref>
==The four functions of the penis==
The four functions of the penis are:
}}</ref>
----
|issue=
|pages=134-5
|url=httphttps://www.cirp.org/library/normal/wright2/
|quote=The normal prepuce should be left alone, with no attempt to retract it until the boy is able to do it himself, at the earliest at three years of age.
|pubmedID=8295581
A study by the Danish paediatrician and school doctor, [[Jakob Øster]], of 9,545 examinations of pupils, published in 1968, led to the following results<ref>{{OesterJ 1968}}</ref>:
{|border='1' style='text-align:right' cellpadding='2'
!width='15%'|Age
|accessdate=2023-12-29
}}</ref>
==Effect of foreskin restoration==
Previously [[circumcised]] men who have [[restored]] their foreskin report that their penis has much more [[Erogenous sensation of the foreskin| sensation]] with a foreskin.
== Video Videos ==<br>=== The Penis ===
<youtube>v=4qbUdVk-QvE</youtube>
<youtube>v=2ixNxjJOJu0</youtube>
* [[Foreskin sensitivity]]
* [[Glans penis]]
* [[Gliding action]]
* [[Jojoba]]
* [[Meissner's corpuscles]]
* [[Preputial sac]]
{{LINKS}}
* {{REFbook
|accessdate=2025-10-08
}}
{{REF}}
[[Category:Penis]]