orifice

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orifice

 [or´ĭ-fis]
1. the entrance or outlet of any body cavity.
2. any opening or meatus. adj., adj orific´ial.
aortic orifice the opening of the left ventricle into the aorta; called also aortic opening.
external urethral orifice urinary meatus.
internal urethral orifice the opening from the urinary bladder into the urethra at one corner of the trigone of the bladder.
left atrioventricular orifice (mitral orifice) the opening between the left atrium and ventricle of the heart.
pulmonary orifice (orifice of pulmonary trunk) the opening between the pulmonary trunk and the right ventricle of the heart; called also opening of pulmonary trunk.
right atrioventricular orifice (tricuspid orifice) the opening between the right atrium and ventricle of the heart.
ureteral orifice the opening of a ureter into the urinary bladder at one corner of the trigone of the bladder. Called also ureteral meatus.

or·i·fice

(or'i-fis), [TA] Avoid the mispronunciation or'ĭ-fĭ-sēz of the plural of this word.
Any aperture or opening.
See also: aperture, opening, os, ostium, meatus.
Synonym(s): orificium [TA]
[L. orificium]

orifice

/or·i·fice/ (or´ĭ-fis)
1. the entrance or outlet of any body cavity.
2. any opening or meatus.orific´ial

aortic orifice  the opening of the left ventricle into the aorta.
cardiac orifice  see under opening.
external urethral orifice  urinary meatus.
left atrioventricular orifice , mitral orifice the opening between the left atrium and ventricle of the heart.
pulmonary orifice , orifice of pulmonary trunk the opening between the pulmonary trunk and the right ventricle.
right atrioventricular orifice , tricuspid orifice the opening between the right atrium and ventricle of the heart.

orifice

(ôr′ə-fĭs, ŏr′-)
n.
An opening, especially to a cavity or passage of the body; a mouth or vent.

or′i·fi′cial (-fĭsh′əl) adj.

orifice

[ôr′ifis]
Etymology: L, orificium, opening
the entrance or outlet of any body cavity. Also called ostium. orificial, adj.

or·i·fice

(ōr'i-fis) [TA]
Any aperture or opening.
Synonym(s): orificium.
[L. orificium]

orifice

any opening or aperture.

or·i·fice

(ōr'i-fis) [TA]
Any aperture or opening.
[L. orificium]

orifice (ôr´ifis),

n an older term for the opening, entrance, or outlet of any body cavity; any foramen or meatus.

orifice

1. the entrance or outlet of any body cavity.
2. any foramen, meatus or opening.
The names of most orifices are self-defining, e.g. atrioventricular, preputial. See also ostium.

atrioventricular orifice
the opening between the atria and ventricles.
cecocolic orifice
aperture through which the cecum connects with the colon.
ileocolic orifice
the communicating orifice between the ileum and the colon.
infundibular orifice
slit-like orifice at the ovarian end of the avian oviduct; positioned near the ovary so that it can grasp the newly extruded oocyte.
intrapharyngeal orifice
the orifice between the nasopharynx and oropharynx which is bounded by the palatopharyngeal arches.
nasomaxillary orifice
the slit-like opening between the maxillary sinus and the middle meatus of the nasal cavity.
omasoabomasal orifice
large, oval opening at the end of the omasal canal which communicates with the abomasum.
oviductal orifice
a slit-like opening in the avian urodeum.
pyloric orifice
aperture between the stomach and duodenum; opens infrequently, solely for the passage of ingesta.
ureteric orifice
paired orifices in the neck of the bladder.
References in periodicals archive ?
A Prison Service spokeswoman said: "Measures are in place to prevent the supply of drugs into prison, including searching strategies, mobile phone signal detectors and Body Orifice Security Scanners (BOSS chairs).
It redefines rape to include male victims and penetration of body orifices with non-sexual organs.
There was blood from multiple body orifices, but no other visible clues suggesting a cause of death," Dr.
The act may range from actual rape involving penetration (either before or after death) to a symbolic sexual assault, such as insertion of foreign objects into a victim's body orifices.
stinks),'' which quickly degraded to a rather threatening serenade in which Matich and Dode were repeatedly, and unfavorably, characterized as body orifices.
Self-injurious behavior including headbanging, picking at or biting the skin and inserting foreign objects into body orifices are also very common characteristics.
He adds that the probe, which can be inserted into body orifices, may replace some exploratory surgery.
For certain cuts, you have to tie off certain body orifices, etc.
On an operating table, hair and skin samples were removed, needles and other objects were then inserted into body orifices.
patents for a hydrogel base which is a unique drug delivery system capable of the sustained release of medicaments into body orifices for safe and effective application at the site of infection or needed protection.
The candiru burrows into body orifices, jams itself in place using barbs along its sides and then drinks the blood of its victim.
It is often symmetrical, involving the hands, wrists and neck and around the body orifices.