vena (redirected from venae vasorum)

vena /ve·na/ (ve´nah) pl. ve´nae   [L.] vein.

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v. ca´va infe´rior  inferior vena cava: the venous trunk for the lower extremities and the pelvic and abdominal viscera; it begins at the level of the fifth lumbar vertebra by union of the common iliac veins, passes upward on the right of the aorta, and empties into the right atrium of the heart.

v. ca´va supe´rior  superior vena cava: the venous trunk draining blood from the head, neck, upper extremities, and chest; it begins by union of the two brachiocephalic veins, passes directly downward, and empties into the right atrium of the heart.

ve´nae vaso´rum  small veins that return blood from the tissues making up the walls of the blood vessels themselves.

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ve·na (vn)

n. pl. ve·nae (-n)

A vein.

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vena

pl. venae [L.] vein. See also Table 15.

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caudal vena caval syndrome

see caudal vena caval thrombosis.

vena cava

one of the large vessels emptying venous blood into the right atrium; includes cranial and caudal venae cavae.

vena cava spontaneous rupture

recorded as a cause of sudden death in horses.

vena cava thrombophlebitis

due usually to spread from a hepatic abscess; a common precursor to vena caval syndrome.

vena caval hiatus

see vena cava foramen.

vena caval syndrome

see caval syndrome.

persistent left cranial vena cava

an uncommon anomaly in dogs, often associated with other vascular anomalies such as persistent right aortic arch and tetralogy of Fallot.

posterior vena cava

caudal vena cava.

cranial vena caval venipuncture

a technique for blood sample collection in pigs; a needle is inserted into the cranial vena cava near the thoracic inlet.