Inferior vena cava

inferiorIVCposterior vena cavacaudal vena cavacaval openinginferior venae cavavena cavavena cava, inferior
The inferior vena cava (or IVC) is a large vein that carries the deoxygenated blood from the lower and middle body into the right atrium of the heart.wikipedia
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Heart

cardiachuman heartapex of the heart
The inferior vena cava (or IVC) is a large vein that carries the deoxygenated blood from the lower and middle body into the right atrium of the heart.
The heart receives blood low in oxygen from the systemic circulation, which enters the right atrium from the superior and inferior venae cavae and passes to the right ventricle.

Vein

veinsvenousvenous system
The inferior vena cava is the lower ("inferior") of the two venae cavae, the two large veins that carry deoxygenated blood from the body to the right auricle of the heart: the inferior vena cava carries blood from the lower half of the body whilst the superior vena cava carries blood from the upper half of the body.
The superior vena cava carries blood from the arms and head to the right atrium of the heart, while the inferior vena cava carries blood from the legs and abdomen to the heart.

Superior vena cava

superioranterior vena cavaSVC
The inferior vena cava is the lower ("inferior") of the two venae cavae, the two large veins that carry deoxygenated blood from the body to the right auricle of the heart: the inferior vena cava carries blood from the lower half of the body whilst the superior vena cava carries blood from the upper half of the body.
Venous return from the lower half, below the diaphragm, flows through the inferior vena cava.

Coronary sinus

cardiac vein
Together, the venae cavae (in addition to the coronary sinus, which carries blood from the muscle of the heart itself) form the venous counterparts of the aorta.
It delivers less-oxygenated blood to the right atrium, as do the superior and inferior venae cavae.

Atrium (heart)

right atriumatrialeft atrium
The inferior vena cava (or IVC) is a large vein that carries the deoxygenated blood from the lower and middle body into the right atrium of the heart.
The right atrium receives and holds deoxygenated blood from the superior vena cava, inferior vena cava, anterior cardiac veins and smallest cardiac veins and the coronary sinus, which it then sends down to the right ventricle (through the tricuspid valve), which in turn sends it to the pulmonary artery for pulmonary circulation.

Venae cavae

vena cavavena cavaevenæ cavæ
The inferior vena cava is the lower ("inferior") of the two venae cavae, the two large veins that carry deoxygenated blood from the body to the right auricle of the heart: the inferior vena cava carries blood from the lower half of the body whilst the superior vena cava carries blood from the upper half of the body.
In humans there are the superior vena cava and the inferior vena cava, and both empty into the right atrium.

Retroperitoneal space

retroperitoneumretroperitonealretro-peritoneal organs
It is a large retroperitoneal vein that lies posterior to the abdominal cavity and runs along the right side of the vertebral column.
Bleeding from a blood vessel or structure in the retroperitoneal such as the aorta or inferior vena cava into the retroperitoneal space can lead to a retroperitoneal hemorrhage.

Thoracic diaphragm

diaphragmdiaphragmatichemidiaphragm
It passes through the thoracic diaphragm at the caval opening at the level of T8.
There are three large openings—the aortic, the esophageal, and the caval opening—plus a series of smaller ones.

Valve of inferior vena cava

Eustachian valveEustachian valve of the inferior vena cavainferior vena cava valve
In the embryo, the inferior vena cava and right auricle are separated by the valve of the inferior vena cava, also known as the Eustachian valve.
The valve of the inferior vena cava (eustachian valve) is a venous valve that lies at the junction of the inferior vena cava and right atrium.

Renal vein

left renal veinveinrenal veins
On the left, they drain into the renal vein which in turn drains into the inferior vena cava.
They connect the kidney to the inferior vena cava.

Transposition of the great vessels

transposition of the great arteriesTransposition of great vesselsDouble discordia
In transposition of the great arteries the inferior vena cava may lie on the left.
Transposition of the great vessels (TGV) is a group of congenital heart defects involving an abnormal spatial arrangement of any of the great vessels: superior and/or inferior venae cavae, pulmonary artery, pulmonary veins, and aorta.

Common iliac vein

veincommon iliac veinscommon iliac
It is formed by the joining of the right and the left common iliac veins, usually at the level of the fifth lumbar vertebra.
The left and right common iliac veins come together in the abdomen at the level of the fifth lumbar vertebra, forming the inferior vena cava.

Abdominal aortic aneurysm

abdominal aneurysmabdominal aortic aneurysmsabdominal
Typical sources of external pressure are an enlarged aorta (abdominal aortic aneurysm), the gravid uterus (aortocaval compression syndrome) and abdominal malignancies, such as colorectal cancer, renal cell carcinoma and ovarian cancer.
The complications include rupture, peripheral embolization, acute aortic occlusion, and aortocaval (between the aorta and inferior vena cava) or aortoduodenal (between the aorta and the duodenum) fistulae.

Aortocaval compression syndrome

aortocaval compressionSupine hypotensive syndrome
Typical sources of external pressure are an enlarged aorta (abdominal aortic aneurysm), the gravid uterus (aortocaval compression syndrome) and abdominal malignancies, such as colorectal cancer, renal cell carcinoma and ovarian cancer.
Aortocaval compression syndrome is compression of the abdominal aorta and inferior vena cava by the gravid uterus when a pregnant woman lies on her back, i.e. in the supine position.

Suprarenal veins

suprarenal veinleft suprarenal veinRight suprarenal vein
On the right, the gonadal veins and suprarenal veins drain into the inferior vena cava directly.

Pregnancy

pregnantfirst trimesterpregnant women
Typical sources of external pressure are an enlarged aorta (abdominal aortic aneurysm), the gravid uterus (aortocaval compression syndrome) and abdominal malignancies, such as colorectal cancer, renal cell carcinoma and ovarian cancer.

Aorta

aorticaortic archaortic root
Together, the venae cavae (in addition to the coronary sinus, which carries blood from the muscle of the heart itself) form the venous counterparts of the aorta. Typical sources of external pressure are an enlarged aorta (abdominal aortic aneurysm), the gravid uterus (aortocaval compression syndrome) and abdominal malignancies, such as colorectal cancer, renal cell carcinoma and ovarian cancer.

Gonadal vein

internal gonadal (spermatic or ovarian) vein
On the right, the gonadal veins and suprarenal veins drain into the inferior vena cava directly.
The left gonadal vein drains into the left renal vein, whereas the right drains directly into the inferior vena cava

Azygos vein

azygosazygous veinazygos veins
It also joins with the azygos vein (which runs on the right side of the vertebral column) and venous plexuses next to the spinal cord.

Inferior vena cava filter

vena cava filterfilterGreenfield filter
It is associated with deep vein thrombosis, IVC filters, liver transplantation and surgical procedures such as the insertion of a catheter in the femoral vein in the groin.
An inferior vena cava filter is a type of vascular filter, a medical device that is implanted by interventional radiologists or vascular surgeons into the inferior vena cava to presumably prevent life-threatening pulmonary emboli (PEs).

Inferior vena cava syndrome

Inferior vena cava syndrome (IVCS) is a constellation of symptoms resulting from obstruction of the inferior vena cava.

Lumbar veins

lumbar vein
By contrast, all the lumbar veins and hepatic veins usually drain directly into the inferior vena cava.

Testicular vein

Left testicular veinspermatic veinsRight testicular vein
The testicular vein (or spermatic vein), the male gonadal vein, carries deoxygenated blood from its corresponding testis to the inferior vena cava or one of its tributaries.

Abdominal aorta

abdominalabdominal aorticaorta, abdominal
Note that the bifurcation (union) of the inferior vena cava is at L5 and therefore below that of the bifurcation of the aorta.