| CT | crista terminalis |
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| crista urethralis | 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) |
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| crista urethralis femininae | A conspicuous longitudinal fold of mucosa on the posterior wall of the urethra. Synonym: crista urethralis femininae. (05 Mar 2000) |
| crista urethralis masculinae | 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) |
| annulus urethralis | The complete collar of smooth muscle cells of the neck of the urinary bladder which extend distally to surround the preprostatic sportion of the male urethra. There is not a comparable structure in the neck of the femoral bladder; the internal urethral sphincter may exist to prevent reflux of semen into bladder. Synonym: annulus urethralis, internal urethral sphincter, musculus sphincter vesicae, preprostate urethral sphincter, proximal urethral sphincter, sphincter muscle of urinary bladder. (05 Mar 2000) |
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| arteria urethralis | <anatomy, artery> Origin, perineal artery; distribution, membranous urethra. Synonym: arteria urethralis. (05 Mar 2000) |
| carina urethralis vaginae | The lower part of the anterior column of the vagina, in relation with the urethra. Synonym: carina urethralis vaginae, carina vaginae. (05 Mar 2000) |
| colliculus urethralis | An elevated portion of the urethral crest upon which open the two ejaculatory ducts and the prostatic utricle. Synonym: colliculus seminalis, caput gallinaginis, colliculus urethralis, seminal hillock, verumontanum. (05 Mar 2000) |
| habenula urethralis | One of two fine, whitish lines running from the meatus urethrae to the clitoris in girls and young women; the vestiges of the anterior part of the corpus spongiosum. (05 Mar 2000) |
| facies urethralis penis | The surface of the penis opposite to the dorsum penis. Synonym: facies urethralis penis. (05 Mar 2000) |
| lacuna urethralis | One of a number of little recesses in the mucous membrane of the spongy urethra into which empty the ducts of the urethral glands. Synonym: lacuna urethralis, Morgagni's lacuna. (05 Mar 2000) |
| wing of crista galli | A small lateral expansion of the ethmoid bone from the front of the crista galli on each side that articulates with the frontal bone and forms the foramen caecum. Synonym: ala cristae galli, alar process. (05 Mar 2000) |
| crista | Synonym: crest. Origin: L. Crest (05 Mar 2000) |
| crista ampullaris | An elevation on the inner surface of the ampulla of each saemicircular duct; filaments of the vestibular nerve pass through the crista to reach hair cells on its surface; the hair cells are capped by the cupula, a gelatinous protein-polysaccharide mass. Synonym: crista ampullaris, acoustic crest, transverse septum. (05 Mar 2000) |
| crista arcuata cartilaginis arytenoideae | The ridge on the anterior surface of the arytenoid cartilage that separates the triangular from the oblong fovea. Synonym: crista arcuata cartilaginis arytenoideae, arched crest, arcuate crest. (05 Mar 2000) |
| crista basilaris ductus cochlearis | An inward projection of the spiral ligament of the cochlea to which is attached the basilar membrane forming the floor of the cochlear duct. Synonym: crista basilaris ductus cochlearis. (05 Mar 2000) |
| crista buccinatoria | A ridge passing from the base of the coronoid process of the mandible to the region of the last molar tooth; it gives attachment to the mandibular part of the buccinator muscle. Synonym: crista buccinatoria. (05 Mar 2000) |
| crista capitis costae | The ridge that separates the superior and inferior articular surfaces of the head of a rib. Synonym: crista capitis costae. (05 Mar 2000) |
| crista colli costae | The sharp upper margin of the neck of a rib. Synonym: crista colli costae. (05 Mar 2000) |
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