La veine cave inférieure (ou IVC) est une grosse veine qui transporte le sang désoxygéné du corps inférieur et moyen dans l'oreillette droite du cœur. Il est formé par la jonction des veines iliaques communes droite et gauche, généralement au niveau de la cinquième vertèbre lombaire.
Le ventricule gauche est l'une des quatre cavités du cœur. Il est situé dans la partie inférieure gauche du cœur sous l'oreillette gauche, séparé par la valve mitrale. Au fur et à mesure que le cœur se contracte, le sang retourne finalement dans l'oreillette gauche, puis à travers la valve mitrale, après quoi il pénètre ensuite dans le ventricule gauche.
La chambre inférieure droite du cœur qui reçoit le sang désoxygéné de l'oreillette droite et le pompe sous basse pression dans les poumons via l'artère pulmonaire. La valve pulmonaire est située entre le ventricule droit et l'artère pulmonaire et fonctionne de la même manière qu'une valve unidirectionnelle.
Il y a 4 veines pulmonaires totales - avec 2 veines pulmonaires provenant de chaque poumon, gauche et droit - qui se vident dans l'oreillette gauche du cœur. Deux veines pulmonaires émergent du hile de chaque poumon et chaque veine pulmonaire reçoit le sang de 3-4 veines bronchiques chacune avant de s'écouler dans l'oreillette gauche.
La valve tricuspide est l'une des deux principales valves du côté droit de votre cœur. Normalement, la valve tricuspide a trois volets (feuillets) qui s'ouvrent et se ferment, permettant au sang de circuler de l'oreillette droite vers le ventricule droit de votre cœur et empêchant le sang de refluer.
L'oreillette gauche est l'une des quatre chambres de votre cœur. Situé dans la moitié supérieure du cœur sur le côté gauche de votre corps, il reçoit du sang fraîchement oxygéné de vos poumons. Ce sang descend ensuite à travers la valve mitrale dans le ventricule gauche (la chambre inférieure gauche du cœur).
Verticales
L'aorte est l'artère principale et la plus grande du corps humain, provenant du ventricule gauche du cœur et s'étendant jusqu'à l'abdomen, où elle se divise en deux artères plus petites (les artères iliaques communes ).
La valve pulmonaire est l'une des quatre valves qui régulent le flux sanguin dans le cœur. La valve se situe entre la cavité cardiaque inférieure droite (ventricule droit) et l'artère pulmonaire.
une grosse veine transportant du sang désoxygéné dans le cœur. Il y en a deux chez l'homme, la veine cave inférieure (transportant le sang du bas du corps) et la veine cave supérieure (transportant le sang de la tête, des bras et du haut du corps).
L'oreillette droite est l'une des quatre chambres du cœur. Le cœur est composé de deux oreillettes et de deux ventricules. Le sang entre dans le cœur par les deux oreillettes et sort par les deux ventricules. Le sang désoxygéné pénètre dans l'oreillette droite par la veine cave inférieure et supérieure.
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