superior vena cava

Also found in: Dictionary, Thesaurus, Acronyms, Encyclopedia, Wikipedia.


 [ve´nah] (pl. ve´nae) (L.)
vein (see also Appendix 2-6).
vena ca´va the inferior vena cava and superior vena cava considered as a unit. See Appendix 2-6.
inferior vena cava the venous trunk for the lower extremities and the pelvic and abdominal viscera; it empties into the right atrium of the heart. See Appendix 2-6.
superior vena cava the venous trunk draining blood from the head, neck, upper extremities, and chest; it empties into the right atrium of the heart. See Appendix 2-6.

superior vena cava

the second largest vein of the body, returning deoxygenated blood from the upper half of the body to the right atrium. It is about 2 cm in diameter and 7 cm long. The section of the superior vena cava closest to the heart composes about one half of the vessel's length and is within the pericardial sac, covered by the serous pericardium. It has no valves. Compare inferior vena cava.

su·pe·ri·or ve·na ca·va

(sŭ-pēr'ē-ŏr vē'nă kā'vă)
Returns blood from the head and neck, upper limbs, and thorax to the posterosuperior aspect of the right atrium; formed in the superior mediastinum by union of the two brachiocephalic veins.
Synonym(s): vena cava superior [TA] , precava.

superior vena cava

The final venous channel that returns blood from the head, shoulders, upper limbs and thoracic structures other than the lungs to the upper chamber (atrium) of the right side of the heart.

Superior vena cava

The major vein that carries blood from the upper body to the heart.

vena cava

vein trunks carrying deoxygenated blood from the body to the right atrium
  • inferior vena cava receiving blood from deep veins of legs and pelvis

  • superior vena cava receiving blood from head, neck, upper limbs and thorax

References in periodicals archive ?
Surgical techniques in partial anomalous pulmonary veins to the superior vena cava.
MacMahon, "Perfusion lung scan in superior vena cava obstruction: demonstration of venous collaterals and systemic-pulmonary venous shunt," American Journal of Roentgenology, vol.
Superior vena cava obstruction: A modern management strategy.
Etiologic considerations in superior vena cava syndrome.
Superior vena cava syndrome with bilateral jugular and subclavian vein thrombosis.
The inferior vena cava was chosen due to occlusion of the superior vena cava and bilateral iliac vein stenoses.
First, that the superior vena cava cannula for CPB, which is thick and hard, could have restricted the movement of the PAC.
Multinodular goiter causing tracheal compression and superior vena cava syndrome.
Pulmonary artery aneurysm accounted for 7%, superior vena cava syndrome 5%, and Budd-Chiari syndrome secondary to hepatic vein stenosis 3.
The procedure involved piercing the skin on the left side of the neck with a needle, inserting an introducer into the skin, and inserting a guide wire through the introducer down through the jugular vein into the superior vena cava and beyond.
5 In human biology, the superior vena cava delivers blood to which internal organ?

Full browser ?