O'Connell et al., who performed dissections on the female genitals of cadavers and used photography to map the structure of nerves in the clitoris, were already aware that the clitoris is more than just its glans and asserted in 1998 that there is more erectile tissue associated with the clitoris than is generally described in anatomical textbooks.
They concluded that some females have more extensive clitoral tissues and nerves than others, especially having observed this in young cadavers as compared to elderly ones, and therefore whereas the majority of females can only achieve orgasm by direct stimulation of the external parts of the clitoris, the stimulation of the more generalized tissues of the clitoris via intercourse may be sufficient for others.
O'Connell's findings were criticized by Vincenzo Puppo, who states that O'Connell and other researchers use imprecise terminological and anatomical descriptions of the clitoris.
Buisson and Foldès suggested "that the special sensitivity of the lower anterior vaginal wall could be explained by pressure and movement of clitoris's root during a vaginal penetration and subsequent perineal contraction".
In 2008, they published the first complete 3D sonography of the stimulated clitoris, and republished it in 2009 with new research, demonstrating the ways in which erectile tissue of the clitoris engorges and surrounds the vagina, arguing that women may be able to achieve vaginal orgasm via stimulation of the G-Spot because the highly innervated clitoris is pulled closely to the anterior wall of the vagina when the woman is sexually aroused and during vaginal penetration.
They assert that since the front wall of the vagina is inextricably linked with the internal parts of the clitoris, stimulating the vagina without activating the clitoris may be next to impossible.
"Clitoral bulbs is an incorrect term from an embryological and anatomical viewpoint, in fact the bulbs do not develop from the phallus, and they do not belong to the clitoris: 'clitoral bulbs' is not a term used in human anatomy, the correct term is the vestibular bulbs," stated Puppo, arguing that the "anterior vaginal wall is separated from the posterior urethral wall by the urethrovaginal septum (its thickness is 10–12 mm)" and that the "inner clitoris" does not exist.
In contrast to Puppo's belief that there is no anatomical relationship between the vagina and clitoris, the majority of researchers maintain that vaginal orgasms are the result of clitoral stimulation, reaffirming that clitoral tissue extends even in the area most commonly reported to be the G-Spot.
Having used MRI technology which enabled her to note a direct relationship between the legs or roots of the clitoris and the erectile tissue of the "clitoral bulbs" and corpora, and the distal urethra and vagina, she stated that the vaginal wall is the clitoris; that lifting the skin off the vagina on the side walls reveals the bulbs of the clitoris—triangular, crescental masses of erectile tissue.
Cunnilingus is the act of using the mouth and tongue to stimulate the female genitals, particularly the clitoris, often the most sensitive part of the female genitalia.
A large clitoris was an object of horror and fascination to the ancient Romans; Martial's epigram I.90 alludes to a woman who uses her clitoris as a penis in a lesbian encounter.
In Portuguese it has been transferred to the feminine gender; the form cunna is also attested in Pompeian graffiti and in some late Latin texts. --!-- The ancient Romans had medical knowledge of the clitoris, and their native word for it was landīca.