superior vena cava (Show more) See all related content vena cava, in air-breathing vertebrates, including humans, either of two major trunks, the anterior and posterior venae cavae, that deliver oxygen-depleted blood to the right side of the heart. The anterior vena cava, also known as the...
A vena cava (plural: venae cavae) is a large vein that carries blood to the heart. You have two venae cavae: the superior vena cava and the inferior vena cava. Together, these large veins carry deoxygenated (with the oxygen removed) blood from all over the body to the right atrium of ...
In cases where the IVC is occluded, the collateral vessels to the superior vena cava open. Learn more about portocaval anastomoses with our article, then take this specially designed quiz to consolidate everything you’ve learned about the IVC and its tributaries. Custom quiz: Veins of the ...
Veins.These blood vessels take blood back to the heart; this blood lacks oxygen (oxygen-poor) and is rich in waste products that are to be excreted or removed from the body. Veins become larger and larger as they get closer to the heart. The superior vena cava is the large vein that ...
2 On the other hand, poorly oxygenated blood from the hepatic and superior vena cava circulations enters the right atrium and is almost completely directed through the tricuspid valve into the right ventricle and pulmonary artery. 2 Because fetal blood is not oxygenated by the lungs, an ...
The superior vena cava is the principal channel for venous blood from the chest, arms, neck, and head.) Smooth, serous (moisture-exuding) membrane lines the fibrous pericardium, then bends back and covers the heart. The portion of membrane lining the fibrous pericardium is known as the ...
Deoxygenated blood that has circulated through the system will be collected from the superior vena cava and inferior vena cava, which drain into the right atrium of the heart. Once deoxygenated blood is pumped from the right atrium through the tricuspid valve into the right ventricle, contraction ...
In superior vena cava syndrome (SVCS), one or more of the major veins are occlused or deeply stenosed. In these cases. Venous blood from the head, neck, chest and upper limbs regularly reaches brachiocephalic veins and the right atrium t... S Spagnolo,M Grasso,L Barbato 被引量: 0发表...
The two largest veins in the body are the superior vena cava, which transports blood from the upper body to the right atrium of the heart, and the inferior vena cava, which transports blood from the lower body to the right atrium. Blood vessels have three layers. The tunica adventitia (ou...
Blood enters the heart through two large veins, the inferior and superior vena cava, emptying oxygen-poor blood from the body into the right atrium. As the atrium contracts, blood flows from your right atrium into your right ventricle through the open tricuspid valve. When the ventricle is ful...