meatus

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meatus

[mē′ād·əs]
(anatomy)
A natural opening or passage in the body.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
References in periodicals archive ?
The patient had normal labia majora and minora, external opening of urethra under the clitoris, but a blind-ended vagina, a karyotype of 46, XY and bilateral testis tissues in the inguinal region.
Detection of higher Parks grades, distance of external opening of the fistula from the anal canal, horseshoe fistulas, and complex fistulas are indicative of significant MRI contribution following clinical evaluation.
A: Photograph shows the bilateral second branchial cleft fistulae, with the external openings over the bilateral neck (arrows).
Patients were divided into two equal groups of 60 each by with the anal mucosa at the level of internal opening and external opening. The plug was secured at the internal and external openings with single vicryl 2-0 suture.
The chief complaints were pain in the anal region, excretion of pus, and occasional bleeding from the external opening.
In order to better assess the route of that fistulous tract, a CT-fistulography was obtained catheterizing the external opening of the fistula with a thin cannula and injecting a water-soluble iodine contrast medium.
(1) A probe is maneuvered from the external opening to internal through the fistula tract.
From an inferior view, there are ten skull base foramina conventionally described as constant: greater palatine, lesser palatine, lacerum, ovale, spinosum, external opening of the carotid canal, stylomastoid, jugular, mastoid, and external opening of the hypoglossal canal (Drake et al.).
Physical examination remains the mainstay of its diagnosis by observation of the entire perineum, looking for an external opening that appears as an open sinus or elevation of granulation tissue.
The inner ostium was identified following the injection of hydrogen-peroxide into the external opening of the fistula.
We injected methylene blue through the external opening of the patient's skin to find the tracts and excise the fistula.
This can be boosted by folding the standard-fit split seatbacks, while a wider external opening adds to the versatility.