Urethral sponge

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The urethral sponge is a spongy cushion of tissue, found in the lower genital area of women, that sits against both the pubic bone and vaginal wall, and surrounds the urethra.

The urethral sponge is composed of erectile tissue; during arousal, it becomes swollen with blood, compressing the urethra, helping prevent urination during sexual activity (along with the pubococcygeus muscle). Additionally, the urethral sponge contains the Skene's glands, which with continued stimulation, may produce an ejaculate (usually clear in color) and release it through the urethra during sexual activity or orgasm. Once considered to be urinary incontinence, the ejaculate is not urine, although it is sometimes mixed with urine, and is similar to that produced by the prostate in men. This is said to be a female ejaculation.

The urethral sponge encompasses a large number of nerve endings, and can, therefore, be stimulated through the front wall of the vagina. Some women enjoy the rear-entry position of sexual intercourse for this reason, because the penis is often angled slightly downward and can stimulate the front wall of the vagina, and in turn, the urethral sponge.

The urethral sponge is often synonymously called the G-spot (Gräfenberg spot), although some say that the two are separate. Some women experience intense pleasure from stimulation of the urethral sponge and others find the sensation irritating. The urethral sponge also surrounds the clitoral nerve, and since the two are so closely interconnected, stimulation of the clitoris may stimulate the nerve endings of the urethral sponge.

Links

• 3D Animation of Female Prostate Gland 1 360 Degree Vertical Rotation

v • d • e Female reproductive system
Follicles/Folliculogenesis	corpus (hemorrhagicum, luteum, albicans) • Theca folliculi (externa, interna) • Follicular antrum (Follicular fluid) • Corona radiata • Zona pellucida • Membrana granulosa (Granulosa cells)
Ovaries/Oogenesis	Germinal epithelium • Tunica albuginea • cortex (Cumulus oophorus, Stroma) • Medulla
Fallopian tubes	Isthmus • Ampulla • Infundibulum • Fimbria
Ligaments	Broad (components: Mesovarium, Mesosalpinx, Mesometrium contents: Round of uterus, Proper of ovary) • Suspensory of ovary • Cardinal
Uterus	cervix/neck (External orifice - Canal of the cervix, Internal orifice) • corpus/body (Cavity of the body, Fundus) • layers (Endometrium, Myometrium, Perimetrium) • Uterine horns
Vulva/mons pubis	Labium: commissures (Anterior • Posterior) • Frenulum labiorum pudendi • Labia majora • Cleft of venus • Labia minora • Vulval vestibule • interlabial sulci Clitoris: Vestibular bulbs • Clitoral crura • Corpus cavernosa • Clitoral glans (Frenulum, Hood) Vagina: vestibular glands/ducts (Bartholin's glands/Bartholin's ducts, Skene's glands/Skene's ducts) • Fossa of vestibule of vagina • Vaginal fornix • Hymen • Orifice
Vestiges	Wolffian (Gartner's duct, Epoophoron, Paroöphoron) • Canal of Nuck
Other	G-spot • Urethral sponge

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Acknowledgement and Attribution Regarding Sources of Content

Some of the initial content on this page may be incorporated in part from copyleft sources in the public domain including wikis such as Wikipedia and AskDrWiki. Drug information for patients came from the The National Library of Medicine. Infectious disease information may have come from the Centers for Disease Control (CDC). Differential Diagnoses are drawn from clinicians as well as an amalgamation of 3 sources: 1.The Disease Database; 2. Kahan, Scott, Smith, Ellen G. In A Page: Signs and Symptoms. Malden, Massachusetts: Blackwell Publishing, 2004:3; 3. Sailer, Christian, Wasner, Susanne. Differential Diagnosis Pocket. Hermosa Beach, CA: Borm Bruckmeir Publishing LLC, 2002:7 .