aortic arches

(redirected from Branchial artery)

a·or·tic arch·es

a series of arterial channels encircling the embryonic pharynx in the mesenchyme of the pharyngeal arches. There are potentially six pairs, but in mammals the fifth pair is poorly developed or absent. The first and second pairs are functional only in very young embryos; the third pair is involved in the formation of the carotids; the fourth arch on the left is incorporated in the arch of the aorta; the sixth pair forms the proximal part of the pulmonary arteries.
References in periodicals archive ?
Each separated ventral aorta (SVA) has one afferent branchial artery and ends in the anteriormost (1st) GP.
Each arch has a corresponding branchial artery and nerve.
Their brachial analysis of the subjects showed the amenorrheic women had a 1% dilation of the branchial artery compared with 7% dilation for both the oligomenorrheic and eumenorrheic women.
Informal discussions with residents suggest that many of them are unaware of the special risks involved in brachial artery sampling and that some use the branchial artery as the primary site for obtaining arterial blood gases.