Kepala penis: Perbedaan antara revisi

[[Kulup]] yang menutupi kepala penis berfungsi menjaga [[mukosa]] dalam keadaan lembab.<ref name="prakash">{{cite journal | last = Prakash | first = Satya | coauthors = Raghuram Rao, K. Venkatesan, dan S. Ramakrishnan |date=Juli 1982 | title = Sub-Preputial Wetness: Its Nature | journal = Annals of National Medical Science (India) | volume = 18 | issue = 3 | pages = 109–112 | url =http://www.cirp.org/library/anatomy/prakash/}}</ref> Pada laki-laki yang telah [[sunat]], kepala penis terpapar dengan lingkungan luar secara terus-menerus dan kering. Szabo dan Short menemukan bahwa kepala penis yang telah disunat tidak memproduksi lapisan [[keratin]] yang lebih tebal.<ref name="szabo">{{cite journal | last = Szabo | first = Robert |author2=Roger V. Short |date=Juni 2000 | title = How Does Male Circumcision Protect Against HIV Infection? | journal = British Medical Journal | volume = 320 | issue = 7249 | pages = 1592–4 | pmid = 10845974 | url =http://bmj.bmjjournals.com/cgi/content/full/320/7249/1592 | accessdate = 7 Juli 2006 | doi = 10.1136/bmj.320.7249.1592 | pmc = 1127372 }}</ref> Beberapa penelitian menunjukkan bahwa kepala penis yang disunat maupun tidak disunat sama-sama sensitif,<ref name="masters">{{cite book |last = Masters |first = William H. |author2=Virginia E. Johnson |title = Human Sexual Response |year = 1966 |publisher = Little, Brown & Co. |location = Boston |isbn = 0-316-54987-8 |pages = 189–91}} (petikan dapat diakses di [http://www.circs.org/library/masters/])</ref><ref name="bleustein">{{cite journal | last = Bleustein | first = Clifford B. | coauthors = James D. Fogarty, Haftan Eckholdt, Joseph C. Arezzo, dan Arnold Melman |date=April 2005 | title = Effect of Neonatal Circumcision on Penile Neurologic Sensation | journal = Urology | volume = 65 | issue = 4 | pages = 773–7 | doi = 10.1016/j.urology.2004.11.007 | pmid = 15833526 }}</ref><ref name = "bleustein2003">{{cite conference | last = Bleustein | first = Clifford B. | coauthors = Haftan Eckholdt, Joseph C. Arezzo, dan Arnold Melman | title = Effects of Circumcision on Male Penile Sensitivity | booktitle = American Urological Association 98th Annual Meeting | place = Chicago, Illinois | date = 26 April–1 Mei 2003 | url = http://www.circs.org/library/bleustein/ }}</ref><ref name="payne2007">{{cite journal | last = Payne | first = Kimberley | coauthors = Thaler, Lea; Kukkonen, Tuuli; Carrier, Serge; dan Binik, Yitzchak |date=Mei 2007 | title = Sensation and Sexual Arousal in Circumcised and Uncircumcised Men | journal = Journal of sexual medicine | volume = 4 | issue = 3 | pages = 667–674 | url = http://www.blackwell-synergy.com/doi/abs/10.1111/j.1743-6109.2007.00471.x | pmid = 17419812 | doi = 10.1111/j.1743-6109.2007.00471.x}}</ref> sedangkan beberapa yang lain menunjukkan bahwa kepala penis yang tidak disunat lebih sensitif.<ref name="sorrels">{{cite journal | last = Sorrells |date=April 2007 | title = Fine-Touch Pressure Thresholds in the Adult Penis| journal = British Journal of Urology International | volume = 99 | issue = 4 | pages = 864–869 | url = http://www3.interscience.wiley.com/cgi-bin/fulltext/118508429/PDFSTART | doi = 10.1111/j.1464-410X.2006.06685.x | first1 = Morris L. | last2 = Snyder | first2 = James L. | last3 = Reiss | first3 = Mark D. | last4 = Eden | first4 = Christopher | last5 = Milos | first5 = Marilyn F. | last6 = Wilcox | first6 = Norma | last7 = Van Howe | first7 = Robert S. | pmid=17378847}}</ref><ref name="yang">{{cite journal | last = Yang | first = D.M. |author2=Lin H. |author3=Zhang B. |author4=Guo W. |date=April 2008 | title = Circumcision Affects Glans Penis Vibration Perception Threshold | journal = Zhonghua Nan Ke Xue | volume = 14 | issue = 4 | pages = 328–330 | pmid = 18481425 }}</ref>