Definitions of porta
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an aperture or hole that opens into a bodily cavity
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types:
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vent
external opening of urinary or genital system of a lower vertebrate
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blastopore
the opening into the archenteron
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aortic orifice
the orifice from the lower left chamber of the heart to the aorta
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stoma
a mouth or mouthlike opening (especially one created by surgery on the surface of the body to create an opening to an internal organ)
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porta hepatis
opening for major blood vessels to enter and leave the liver
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spiracle
a breathing orifice
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mouth
the externally visible part of the oral cavity on the face and the system of organs surrounding the opening
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os
a mouth or mouthlike opening
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cervix, cervix uteri, uterine cervix
necklike opening to the uterus
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fenestra
a small opening covered with membrane (especially one in the bone between the middle and inner ear)
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cardia
the opening into the stomach and that part of the stomach connected to the esophagus
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introitus
entrance or opening to a hollow organ or tube (especially the vaginal opening)
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external orifice, urethral orifice
the orifice through which urine is discharged
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pylorus
a small circular opening between the stomach and the duodenum
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anus
the excretory opening at the end of the alimentary canal
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fontanel, fontanelle, soft spot
any membranous gap between the bones of the cranium in an infant or fetus
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naris
any of the openings to the nasal cavities that allow air to flow through the cavities to the pharynx
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rima
a narrow elongated opening or fissure between two symmetrical parts
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cytostome
mouth of a protozoan
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beak, bill, neb, nib, pecker
horny projecting mouth of a bird
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beak
beaklike mouth of animals other than birds (e.g., turtles)
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blowhole
the spiracle of a cetacean located far back on the skull
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stigma
an external tracheal aperture in a terrestrial arthropod
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mouth, oral cavity, oral fissure, rima oris
the opening through which food is taken in and vocalizations emerge
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incompetent cervix
(obstetrics) uterine cervix that becomes dilated before term and without labor often resulting in miscarriage or premature birth
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fenestra of the vestibule, fenestra ovalis, fenestra vestibuli, oval window
fenestra that has the base of the stapes attached to it
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fenestra cochleae, fenestra of the cochlea, fenestra rotunda, round window
fenestra leading into the cochlea
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pudendal cleavage, pudendal cleft, pudendal slit, rima pudendi, rima vulvae, urogenital cleft, vulvar slit
the fissure between the labia majora
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asshole, bunghole
vulgar slang for anus
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imperforate anus
a congenital defect of the anus; there is partial or complete obstruction of the anal opening
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anterior fontanelle
corresponds to the bregma when bones have ossified
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sphenoid fontanel, sphenoid fontanelle, sphenoidal fontanel, sphenoidal fontanelle
the irregularly shaped area on either side of the cranium where the frontal bone and the anterior tip of the parietal bone and the temporal bone and the greater wing of the sphenoid bone meet; corresponds to the pterion when bones have ossified
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anterior naris, nostril
either one of the two external openings to the nasal cavity in the nose
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posterior naris
either one of the two posterior openings at the back of the nasal cavity leading to the nasopharynx
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glottis vera, rima glottidis, rima vocalis, true glottis
the space between the two true vocal folds
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false glottis, glottis spuria, rima respiratoria, rima vestibuli
the opening between the false vocal folds
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type of:
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passage, passageway
a path or channel or duct through or along which something may pass
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