| urethra | <anatomy, urology> The tube that conveys urine from the bladder to the outside. In the female it measures 25.4 to 38.1 millimetres, in the male 25 centimetres. (27 Sep 1997) |
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| urethra feminina | A canal about 4 cm long passing from the bladder, in close relation with the anterior wall of the vagina and having a long axis that parallels that of the vagina, opening in the vestibule of the vagina posterior to the clitoris and anterior to the vaginal orifice. Synonym: urethra feminina, urethra muliebris. (05 Mar 2000) |
| urethra masculina | A canal about 20 cm in length opening at the extremity of the glans penis; it gives passage to the spermatic fluid as well as the urine. Synonym: urethra masculina, urethra virilis. (05 Mar 2000) |
| urethra muliebris | A canal about 4 cm long passing from the bladder, in close relation with the anterior wall of the vagina and having a long axis that parallels that of the vagina, opening in the vestibule of the vagina posterior to the clitoris and anterior to the vaginal orifice. Synonym: urethra feminina, urethra muliebris. (05 Mar 2000) |
| urethra virilis | A canal about 20 cm in length opening at the extremity of the glans penis; it gives passage to the spermatic fluid as well as the urine. Synonym: urethra masculina, urethra virilis. (05 Mar 2000) |
| urethral | Of or pertaining to the urethra. <medicine> Urethral fever, fever occurring as a consequence of operations upon the urethra. Source: Websters Dictionary (01 Mar 1998) |
| urethral artery | <anatomy, artery> Origin, perineal artery; distribution, membranous urethra. Synonym: arteria urethralis. (05 Mar 2000) |
| urethral calculus | A stone impacted in urethra. May have formed proximally and gotten stuck there or may have formed in urethra; uncommon. (05 Mar 2000) |
| urethral carina of vagina | The lower part of the anterior column of the vagina, in relation with the urethra. Synonym: carina urethralis vaginae, carina vaginae. (05 Mar 2000) |
| urethral caruncle | A small, fleshy, sometimes painful protrusion of the mucous membrane at the meatus of the female urethra; it may be telangiectatic, papillomatous, or composed of granulation tissue. (05 Mar 2000) |
| urethral crest | Longitudinal mucosal fold in the dorsal wall of the urethra. See: urethral crest of female, urethral crest of male. Synonym: crista urethralis. (05 Mar 2000) |
| urethral crest of female | A conspicuous longitudinal fold of mucosa on the posterior wall of the urethra. Synonym: crista urethralis femininae. (05 Mar 2000) |
| urethral crest of male | A longitudinal fold on the posterior wall of the urethra extending from the uvula of the bladder through the prostatic urethra; prominent in its midportion is the seminal colliculus. Synonym: crista phallica, crista urethralis masculinae. (05 Mar 2000) |
| urethral dilation | Increasing the caliber of the urethra by passage of a dilator. (05 Mar 2000) |
| urethral diverticulum | A sac-like outpouching of the urethral wall, either from a congenital defect or, more commonly, as a result of chronic penetrating inflammation. (05 Mar 2000) |
| anterior urethra | The portion of urethra distal to urogenital diaphragm (external sphincter). (05 Mar 2000) |
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| bulb of urethra | The expanded posterior part of the corpus spongiosum of the penis lying in the interval between the crura of the penis. Synonym: bulbus penis, bulb of corpus spongiosum, bulb of urethra, bulbus urethrae. (05 Mar 2000) |
| male urethra | A canal about 20 cm in length opening at the extremity of the glans penis; it gives passage to the spermatic fluid as well as the urine. Synonym: urethra masculina, urethra virilis. (05 Mar 2000) |
| glands of the female urethra | Numerous mucous glands in the wall of the female urethra. Synonym: glandulae urethrales femininae, Guerin's glands, paraurethral glands, Skene's glands. (05 Mar 2000) |
| glands of the male urethra | Numerous mucous glands in the wall of the penile urethra. Synonym: glandulae urethrales masculinae, Littre's glands. (05 Mar 2000) |
| penile urethra | The portion of the male urethra, about 15 cm in length, which traverses the corpus spongiosum. Synonym: pars spongiosa urethrae masculinae, pars cavernosa, penile urethra, spongy part of the male urethra. (05 Mar 2000) |
| membranous part of male urethra | The portion of the male urethra, about 1 cm in length, extending from the prostate to the beginning of the urethra in the corpus spongiosum just beyond the bulb. Synonym: pars membranacea urethrae masculinae, membranous urethra. (05 Mar 2000) |
| membranous urethra | The portion of the male urethra, about 1 cm in length, extending from the prostate to the beginning of the urethra in the corpus spongiosum just beyond the bulb. Synonym: pars membranacea urethrae masculinae, membranous urethra. (05 Mar 2000) |
| mucosa of female urethra | The inner mucosal layer of the female urethra. Synonym: tunica mucosa urethrae femininae. (05 Mar 2000) |
| muscular coat of female urethra | Muscular layer of the wall of the female urethra. Synonym: tunica muscularis urethrae femininae. (05 Mar 2000) |
| posterior urethra | The portion of urethra posterior to the urogenital diaphram (external sphincter). (05 Mar 2000) |
| prostatic urethra | The prostatic part of the male urethra, about 2.5 cm in length, that traverses the prostate; it includes the seminal colliculus, and the ejaculatory and prostatic ducts open into it. Synonym: pars prostatica urethrae. (05 Mar 2000) |
| sphincter muscle of urethra | Origin, ramus of pubis; insertion, with fellow in median raphe behind and in front of urethra; action, constricts membranous urethra; nerve supply, pudendal. Synonym: musculus sphincter urethrae, external urethral sphincter, Guthrie's muscle, musculus compressor urethrae, musculus constrictor urethrae, musculus sphincter urethrae membranaceae, sphincter muscle of urethra, Wilson's muscle. (05 Mar 2000) |
| spongy part of the male urethra | The portion of the male urethra, about 15 cm in length, which traverses the corpus spongiosum. Synonym: pars spongiosa urethrae masculinae, pars cavernosa, penile urethra, spongy part of the male urethra. (05 Mar 2000) |
| spongy urethra | The portion of the male urethra, about 15 cm in length, which traverses the corpus spongiosum. Synonym: pars spongiosa urethrae masculinae, pars cavernosa, penile urethra, spongy part of the male urethra. (05 Mar 2000) |