venae comitantes

(redirected from companion veins)

ve·nae co·mi·tan·tes

[TA]
a pair of veins, but occasionally more, that closely accompany an artery in such a manner that the pulsations of the artery aid venous return.
Synonym(s): companion veins

ve·nae co·mi·tan·tes

(vē'nē kom-i-tan'tēz) [TA]
A pair (or occasionally more) of veins that closely accompany an artery in such a manner that the pulsations of the artery aid venous return.

venae comitantes

Pairs of veins that often accompany small arteries. Larger arteries are typically accompanied by only a single vein.
See also: vena
References in periodicals archive ?
The vein system located in this area consists of five main parallel, near vertical, auriferous quartz veins and numerous shorter parallel companion veins.
Cerebral blood drains through emissary veins and their smaller companion veins into "collecting sinuses" just beneath the skull, he says.