aortic bulb


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a·or·tic bulb

[TA]
the dilated first part of the aorta containing the aortic semilunar valves and the aortic sinuses, especially evident via angiography (aortogram).

a·or·tic bulb

(ā-ōr'tik bŭlb) [TA]
The dilated first part of the aorta containing the aortic semilunar valves and the aortic sinuses.
Synonym(s): bulbus aortae [TA] .

aortic bulb

The dilated portion of the truncus arteriosus in the embryo that gives rise to the roots of the aorta and pulmonary arteries.
See also: bulb