Magnetic Resonance Images (MRI) of the male and female genitals during coitus

Midsagittal image of the anatomy of sexual intercourse (experiment 12). P=penis, Ur=urethra, Pe=perineum, U=uterus, S=symphysis, B=bladder, I=intestine, L5=lumbar 5, Sc=scrotum


MRI of Coitus.

From :
http://www.bmj.com/cgi/content/full/319/7225/1596