Magnetic resonance imaging (MRI) of sexual intercourse: second experience in missionary position and initial experience in posterior position

Journal of Sex & Marital Therapy
A FaixK Lanfrey

Abstract

Our objective was to confirm that it is feasible to take images of the male and female genitals during coitus and to compare this present study with previous theories and recent radiological studies of the anatomy during sexual intercourse. Magnetic resonance imaging was used to study the anatomy of the male and female genitals during coitus. Three experiments were performed with one couple in two positions and after male ejaculation. The images obtained confirmed that during intercourse in the missionary position, the penis reaches the anterior fornix with preferential contact of the anterior vaginal wall. The posterior bladder wall was pushed forward and upward and the uterus was pushed upward and backward. The images obtained from the rear-entry position showed for the first time that the penis seems to reach the posterior fornix with preferential contact of the posterior vaginal wall. In this position, the bladder and uterus were pushed forward. A different preferential contact of the penis with the female genitals was observed with each position. These images could contribute to a better understanding of the anatomy of sexual intercourse.

References

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Sep 14, 2001·Journal of Sex & Marital Therapy·A FaixK Lanfrey

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Citations

Sep 13, 2002·NMR in Biomedicine
Apr 25, 2007·Journal of Sex & Marital Therapy·Cherng-Jye Jeng, Lih-Rong Wang
Apr 13, 2011·Journal of the National Cancer Institute·Jeffrey N RobertsJohn T Schiller
Jan 5, 2006·International Journal of Andrology·Jing DengAndrew Todd-Pokropek
Jun 3, 2016·Integrative and Comparative Biology·Patricia L R Brennan
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Mar 3, 2015·Clinical Anatomy : Official Journal of the American Association of Clinical Anatomists & the British Association of Clinical Anatomists·Rachel N Pauls
Oct 28, 2014·Clinical Anatomy : Official Journal of the American Association of Clinical Anatomists & the British Association of Clinical Anatomists·Birgitte Schmidt Astrup, Annemette Wildfang Lykkebo
Dec 25, 2009·Psychophysiology·Nicole PrauseKen Bosworth
Apr 18, 2007·The Journal of Urology·Matthew N Simmons, J Stephen Jones
Feb 18, 2005·Journal of Psychosomatic Obstetrics and Gynaecology·D D SuhK R Maravilla
Jan 11, 2019·International Urogynecology Journal·Fatih Tarhan, Pınar Ay
Jul 8, 2021·Proceedings. Biological Sciences·Yoko MatsumuraStanislav N Gorb

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