| short crus of incus | The short crus of incus; the process of the incus that fits into a depression (fossa incudis) in the epitympanic recess. Synonym: crus breve incudis. (05 Mar 2000) |
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| simple crus of saemicircular duct | The non-ampullary end of the lateral saemicircular duct that opens independently into the utricle. Synonym: crus membranaceum simplex ductus saemicircularis, simple membranous limb of saemicircular duct. (05 Mar 2000) |
| lateral crus | Limb or leg-like portion of a structure, farthest from midline. Synonym: crus laterale, lateral limb. (05 Mar 2000) |
| lateral crus of facial canal | Laterally-placed, posteriorly-directed second portion of the horizontal part of the facial canal. See: horizontal part of facial canal. Synonym: lateral crus of horizontal part of the facial canal. (05 Mar 2000) |
| lateral crus of horizontal part of the facial canal | Laterally-placed, posteriorly-directed second portion of the horizontal part of the facial canal. See: horizontal part of facial canal. Synonym: lateral crus of horizontal part of the facial canal. (05 Mar 2000) |
| lateral crus of the greater alar cartilage of the nose | Portion of cartilage extending laterally and posteriorly in a wing-like fashion, supporting the wing of the nose and keeping the nostril patent. Synonym: crus laterale cartilaginis alaris majoris. (05 Mar 2000) |
| lateral crus of the superficial inguinal ring | Portion of the external oblique aponeurosis which passes lateral to the superficial inguinal ring blending into the inguinal ligament and forming the lateral boundary of the ring. Synonym: crus laterale anuli inguinalis superficialis. (05 Mar 2000) |
| left crus of atrioventricular bundle | The left leg or branch of the atrioventricular bundle which separates from the atrioventricular bundle just below the membranous portion of the interventricular septum to descend the septal wall of the left ventricle and begins to ramify subendocardially. Synonym: crus sinistrum fasciculi atrioventricularis. (05 Mar 2000) |
| left crus of diaphragm | The muscular origin of the diaphragm from the upper two or three lumbar vertebrae that ascends to the left of the aorta to reach the central tendon. Synonym: crus sinistrum diaphragmatis. (05 Mar 2000) |
| long crus of incus | The process of the incus that articulates with the stapes. Synonym: crus longum incudis. (05 Mar 2000) |
| ampulla ductus deferentis | The dilation of the ductus deferens where it approaches its contralateral partner just before it is joined by the duct of the seminal vesicle. Synonym: ampulla ductus deferentis, Henle's ampulla. (05 Mar 2000) |
| ampulla ductus lacrimalis | Incorrect term for ampulla of lacrimal canaliculus. (05 Mar 2000) |
| ampulla of ductus deferens | The dilation of the ductus deferens where it approaches its contralateral partner just before it is joined by the duct of the seminal vesicle. Synonym: ampulla ductus deferentis, Henle's ampulla. (05 Mar 2000) |
| arcus ductus thoracici | See: thoracic duct. (05 Mar 2000) |
| arteria ductus deferentis | Origin, anterior division of internal iliac, or sometimes superior vesical; distribution, ductus deferens, seminal vesicles, testicle, ureter; anastomoses, testicular, cremasteric arteries. Synonym: arteria ductus deferentis, arteria deferentialis, deferential artery. (05 Mar 2000) |