obturator
IPA: ʌbtʊrˈeɪtɝ
noun
- (surgery) An object used to obstruct a hole, such as a fissure of the palate.
- (anatomy) The membrane vessels, etc. that close the obturator foramen, or thyroid foramen, a large opening or fenestra in the anterior part of the hip bone.
- (engineering) A valve closure member (disk, gate, plug, etc.).
- (ordnance) Any device for preventing the escape of gas through the breech mechanism of a breech-loading gun; a gas check.
- (photography) A camera shutter.
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Examples of "obturator" in Sentences
- Paralysis of the obturator nerve or nerves is met with rather frequently, notwithstanding, in mares, following dystocia.
- An appendix sitting behind the obturator muscle causes a pain sensation in the pelvis, sometimes only detected with a rectal exam.
- Moller, [37] quoting Nocard, describes a case where fracture occurred through the region of the foramen ovale and paralysis of the obturator nerve followed.
- The nerves (one or both) may become bruised at the brim of the obturator foramen by being caught between the pelvis and the body of the fetus in some cases of protracted labor.
- When paralysis of the obturator nerve occurs as a post-partum complication, and other conditions are favorable, the subject should be raised to its feet without unnecessary delay.
- In some cases of dystocia the obturator nerve, (or nerves, if the involvement is bilateral), becomes injured by being caught between the maternal pelvis and some dense part of the fetus.
- Branches supply the following muscles -- obturator, semimembranosus (adductor magnus), biceps femoris (triceps abductor femoris), semitendinosus (biceps rotator tibialis), lateral extensor
- In one instance damage particularly affecting the lumbo-sacral cord occurred, but this was complicated by signs of irritation of the anterior crural and obturator nerves, as the result of retro-peritoneal hæmorrhage and injury to the psoas muscle.
- -- The obturator nerve, situated at first under the peritoneum, accompanies the obturator artery through the obturator foramen and gaining the muscles on the internal face of the thigh, terminates in the obturator externus, adductors, pectineus and gracilis, also giving twigs to the obturator internus (Strangeways).
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