Changes

Only after that do the different external features emergein the [[fetus]]. Between the 11th and 17th week the genital tubercle becomes the [[clitoris ]] in females, and the glans in males.

In girls, the genital fold remains open, in boys it grows together. It transforms into the inner labia and the clitoral hood in girls, and into the [[foreskin ]] in boys. The labioscrotal swelling becomes the outer labia and scrotum respectively.

The growing together of the folds results in the seam that runs from the underside of the scrotum and the penile shaft up to the tip of the foreskin. The penis now consists of the shaft containing the erectile tissue, with the glans at the top. The shaft is surrounded by the [[shaft skin ]] which, however, is not knitted to it. This mobility, combined with the [[stretching ]] capabilities of the [[skin]], allows for the growth in dimension of the penis during an [[erection]]. During an [[erection ]] the erectile tissue fills with blood, giving the penis its stiffness and enlarged size.

In the area of the [[glans ]] the [[shaft skin ]] transitions into the outer layer of the [[foreskin]], which extends past the tip of the [[glans]]. Parallel to that runs the inner layer of the [[foreskin]]. It is attached behind the rim of the [[glans]], and runs between the [[glans ]] and the outer [[foreskin ]] layer, also past the tip of the [[glans]]. At the tip, the inner and outer [[foreskin ]] layers are joined together.

This junction makes up the so-called [[ridged band]]. At the underside of the penis, in the area of the seam, the inner foreskin layer is connected to the glans by the [[frenulum]].

Like the shaft skin, the foreskin layers are neither fused to the [[File:Circumpendium-2-penis, nor to each other, but are moveable against each other. This enables the foreskin to be retracted all the way past the glans-1-English.jpg|center|400px]]

At Like the point of birth[[shaft skin]], the development of [[foreskin]] layers are neither fused to the external male genital organs is not completely finishedpenis, nor to each other, but are moveable against each other. At this stage, This enables the foreskin and glans share an epithelium (mucous layer, to be retracted all the balanopreputial membrane) that fuses the two together. It serves to protect way past the glans during infancy, and dissolves as until it is stopped by the child develops[[frenulum]].

Only then the foreskin can be retracted. The age at which this occurs is subject to the child's individual development. If the foreskin is retracted prematurely, before it has fully separated, that can result in painful tears and infections[[File:Circumpendium-2-penis-2-English.jpg|center|400px]]

The widening At the time of birth, the development of the external male genital organs is not completely finished. At this stage, the [[foreskin also depends on age]] and [[glans]] share an epithelium (mucous layer, the balano-preputial membrane) that fuses the two together. A child's foreskin may be too tight It serves to be retracted all the way past protect the [[glans]] during infancy, even though it has already completely separated from and dissolves as the glanschild develops. This early Premature forcible [[retraction of the foreskin tightness (]] will tear this membrane, causing great [[phimosispain]]) and injury to the boy, who suffers this abuse. The child, himself, should be the first person to retract his foreskin.<ref>{{REFjournal |last=Wright |init=JE |title=Further to the <q>Further Fate of the Foreskin</q> |journal=Med J Aust |date=1994 |volume=160 |issue= |pages=134-5 |url=http://www.cirp.org/library/normal/wright2/ |quote=The normal prepuce should be left alone, with no attempt to retract it until the boy is a normal stage able to do it himself, at the earliest at three years of development and vanishes with increasing age in most boys. |pubmedID=8295581 |pubmedCID= |DOI= |accessdate=2019-10-01}}</ref> <ref name="NOCIRCpretract">{{REFdocument |url=http://www.nocirc.org/publish/6pam.pdf |title=Answers to Your Questions About Premature (Forcible) Retraction of Your Son's Foreskin |location=San Anselmo |publisher=NOCIRC |date=2000 |format=PDF}}</ref>

A study by Only then the Danish paediatrician and school doctor, Jakob Øster, of 9,545 examinations of pupils, published in 1968, led [[foreskin]] can be retracted. The age at which this occurs is subject to the following results<ref>Øster Jchild's individual development. Further fate of If the foreskin: incidence of preputial adhesionsis retracted prematurely, [[phimosis]]before it has fully separated, that can result in painful tears and smegma among Danish Schoolboys. Arch Dis Child 1968;43:200-3infections.</ref>:

'''''Classification according to Øster:'''''

Thorvaldsen & Meyhoff (2005) conducted a survey of 4000 young men in [[Denmark]]. They report that the mean age of first foreskin retraction is 10.4 years in [[Denmark]].<ref name="Thorvaldsen2005">{{REFjournal |last= References Thorvaldsen |init=MA |last2=Meyhoff |init2=H |title=Patologisk eller fysiologisk fimose? |journal=Ugeskr Læger |volume=167 |issue=17 |pages=1858-1862 |url=http://www.cirp.org/library/normal/thorvaldsen1/ |quote= |pubmedID=15929334 |pubmedCID= |DOI= |date=2005 |accessdate=2019-10-01}}<references /ref> Non-retractile foreskin is the more common condition until about 10-11 years of age. == Penis size ==The average length of the adult penis is 5.5 inches or 14 centimeters. The average girth is 4.6 inches or 11.7 centimeters.<ref>{{REFweb |url=https://unravelingsize.wordpress.com/ |title=Unravelling size |last= |first= |init= |publisher= |website=wordpress.com |date= |accessdate=2023-12-29}}</ref>== Video ==<br><youtube>v=4qbUdVk-QvE</youtube><br><b>What Happens to Your Penis As You Age? A Doctor Explains</b><youtube>v=2ixNxjJOJu0</youtube> {{SEEALSO}}* [[Circumcision - Penis SensitivityTest]]* [[Erection]]* [[Foreskin sensitivity]]* [[Gliding action]]* [[Meissner's corpuscles]]{{LINKS}}* {{REFbook |last=Quartey |first= |init=JKM |author-link= |year=2006 |title=Anatomy and Blood Supply of the Urethra and Penis |url=https://link.springer.com/content/pdf/10.1007/3-540-29385-X_3.pdf |work=Urethral reconstructive surgery |editor= |edition= |volume= |chapter=Chapter Three |scope= |page= |pages=12-17 |location= |publisher=Springer |ISBN= |quote= |format=PDF |accessdate=2023-11-08 |note=}}* {{REFweb |url=http://www.intactaus.org/information/functionsoftheforeskin/ |title=Functions of the Foreskin |last= |first= |init= |publisher=Intact Australia |date= |accessdate=2024-01-14}}{{REF}}   [[Category:Genital]][[Category:Male sexuality]][[Category:Medical_term]][[Category:Penile anatomy]][[Category:Physiology]]