conus arteriosus

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conus

 [ko´nus] (pl. co´ni) (L.)
1. a cone-shaped structure.
2. posterior staphyloma of the myopic eye.
conus arterio´sus the anterosuperior portion of the right ventricle of the heart, at the entrance to the pulmonary trunk. Called also infundibulum.
conus medulla´ris the cone-shaped lower end of the spinal cord, at the level of the upper lumbar vertebrae.

co·nus ar·te·ri·o·'sus

[TA]
the left or anterosuperior, smooth-walled portion of the cavity of the right ventricle of the heart, which begins at the supraventricular crest and terminates in the pulmonary trunk.

conus arteriosus

(kō′nəs är-tîr′ē-ō′səs)
n. pl. coni arteriosi (kō′nī är-tîr′ē-ō′sī, kō′nē är-tîr′ē-ō′sē)
1. A conical extension of the right ventricle in the heart of mammals, from which the pulmonary artery originates.
2. An extension of the ventricle in the heart of amphibians and certain fish.

ar·te·ri·al cone

(ahr-tēr'ē-ăl kōn)
The left or anterosuperior, smooth-walled portion of the cavity of the right ventricle of the heart, which begins at the supraventricular crest and terminates in the pulmonary trunk.
Synonym(s): conus arteriosus [TA] , infundibulum (4) .

conus arteriosus

the projection from which the pulmonary artery arises on the right ventricle of the heart.

conus

pl. coni [L.]
1. a cone or cone-shaped structure.
2. posterior staphyloma of the myopic eye.

conus arteriosus
the funnel-shaped portion of the right ventricle of the heart at the entrance to the pulmonary trunk.
conus medullaris
the cone-shaped caudal end of the spinal cord; found at the level of the upper lumbar vertebrae in the human spine, but more caudally in domestic animals.
References in periodicals archive ?
The TCA was seen as single vessel in 49 hearts (98%), where as in one heart (2%) it immediately divided into two branches both supplying the lower part of pulmonary conus and upper part of right ventricle (Figure 2).
They documented a case in which, the third coronary artery divided into two branches, one of which went to pulmonary conus, while the other was very long and descended along the front side of the right ventricle.
TCA has a subepicardial course and it distributes anteriorly over the lower part of pulmonary conus and upper part of right ventricle.