People who have some preservation of sensation in the dermatomes at the S4 and S5 levels and display a bulbocavernosus reflex ( contraction of the pelvic floor in response to pressure on the clitoris or glans penis ) are usually able to experience reflex erections or lubrication.
12.
"' Vaginismus "', sometimes called "'vaginism "'and "'genito-pelvic pain disorder "', is a condition that affects a woman's ability to engage in vaginal penetration, including sexual intercourse, bulbocavernosus, circumvaginal, and perivaginal muscles have also been suggested.
13.
The bulbocavernosus muscles, which insert into the corpora cavernosa, " contract and compress the dorsal vein of the clitoris, the only vein that drains the blood from the spaces in the corpora cavernosa " and the arterial blood " continues to pour in and, having no way to drain out, fills the venous spaces until they become turgid and engorged with blood ".
