Editing G-spot (section)

===Nerve endings===
G-spot proponents are criticized for giving too much credence to [[anecdotal evidence]], and for questionable investigative methods; for instance, the studies which have yielded positive evidence for a precisely located G-spot involve small participant samples.<ref name="Balon, Segraves"/><ref name="Hines"/> While the existence of a greater concentration of nerve endings at the lower third (near the entrance) of the vagina is commonly cited,<ref name="Rosenthal"/><ref name="Greenberg"/><ref name="Sex and Society"/><ref name="Weiten">{{Cite book|first1=Wayne|last1=Weiten|first2=Dana S.|last2=Dunn|first3=Elizabeth Yost|last3=Hammer|title=Psychology Applied to Modern Life: Adjustment in the 21st Century|isbn=9781111186630|publisher=Cengage Learning|year=2011|page=386|access-date=January 5, 2012|url=https://books.google.com/books?id=CGu96TeAZo0C&pg=PT423|archive-date=June 14, 2013|archive-url=https://web.archive.org/web/20130614031527/http://books.google.com/books?id=CGu96TeAZo0C&pg=PT423|url-status=live}}</ref> some scientific examinations of vaginal wall innervation have shown no single area with a greater density of nerve endings.<ref name="Greenberg"/><ref name="Hines"/>

Several researchers also consider the connection between the Skene's gland and the G-spot to be weak.<ref name="Hines"/><ref name="santos">{{cite journal |last1=Santos |first1=F |last2=Taboga |first2=S. |year=2003 |title=Female prostate: a review about biological repercussions of this gland in humans and rodents.|journal=Animal Reproduction |volume=3 |issue=1 |pages= 3–18}}</ref> The urethral sponge, however, which is also hypothesized as the G-spot, contains sensitive nerve endings and erectile tissue.<ref name="Irvine"/><ref name="Chalker"/> Sensitivity is not determined by neuron density alone: other factors include the branching patterns of neuron terminals and cross or collateral innervation of neurons.<ref name="pmid10651316">{{cite journal|last1=Babmindra |first1=VP |last2=Novozhilova |first2=AP |last3=Bragina |first3=TA |title=The structural bases of the regulation of neuron sensitivity |journal=Neurosci. Behav. Physiol. |volume=29 |issue=6 |pages=615–20 |year=1999 |pmid=10651316 |doi=10.1007/BF02462474 |s2cid=9132976 |url=http://resources.metapress.com/pdf-preview.axd?code=q6h325761132q014&size=largest |access-date=2010-01-03 |display-authors=etal |url-status=dead |archive-url=https://web.archive.org/web/20110714081305/http://resources.metapress.com/pdf-preview.axd?code=q6h325761132q014&size=largest |archive-date=2011-07-14 }}</ref> While G-spot opponents argue that because there are very few tactile nerve endings in the vagina and that therefore the G-spot cannot exist, G-spot proponents argue that vaginal orgasms rely on pressure-sensitive nerves.<ref name="Balon, Segraves"/>