aditus

opening

 [o´pen-ing]

a gap or open space; anatomic nomenclature for various types of openings includes aditus, aperture, foramen, fossa, hiatus, inlet, meatus, orifice, ostium, and outlet.

aortic opening

1. the aperture in the diaphragm for passage of the descending aorta.

2. aortic orifice.

cardiac opening the opening from the esophagus into the stomach.

pulmonary opening (opening of pulmonary trunk) pulmonary orifice.

pyloric opening the opening between the stomach and duodenum.

ap·er·ture

(ap'er-chūr),

1. Opening. An inlet or entrance to a cavity or channel. In anatomy, a gap or hole.
See also: fossa, ostium, orifice, pore. Synonym(s): apertura [TA]

2. The diameter of the objective of a microscope.

Synonym(s): aditus [TA]

[L. apertura, an opening]

aditus

/ad·i·tus/ (ad´ĭ-tus) pl. a´ditus   [L.] in anatomic nomenclature, an opening or entrance.

aditus

[ad′itəs]

Etymology: L, going to

an approach or an entry.

in·let

(in'lĕt) [TA]

A passage leading into a cavity.
Synonym(s): aditus [TA] .

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ap·er·ture

(ap'ĕr-chŭr) [TA]

1. An inlet or entrance to a cavity or channel; in anatomy, an open gap or hole.

2. The diameter of the objective of a microscope.
Synonym(s): aditus [TA] , apertura [TA] .

[L. apertura, an opening]

ap·er·ture

(ap'ĕr-chŭr) [TA]

1. [TA] Opening. An inlet or entrance to a cavity or channel. In anatomy, a gap or hole.
Synonym(s): apertura.

2. The diameter of the objective of a microscope.
See also: fossa, ostium, orifice
Synonym(s): aditus [TA] .

[L. apertura, an opening]

aditus

pl. aditus [L.] an entrance or opening.

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aditus laryngis

the entrance to the larynx.

aditus pharyngis

the aperture between the palatoglossal arches through which the mouth communicates with the oropharynx.