ABDOMINAL VEINS ANATOMYThe abdominal aorta and the inferior vena cava run parallel along the right side up through the abdominal cavity, through the diaphragm, and then into the right atrium. This large vessel carries the widest diameter in the human body and is created by the union of the two common iliac veins which removed the deoxygenated blood from the lower extremities.
The inferior vena cava collects the tributaries from various body parts during its passage through the abdominal cavity. The veins that meet with it along the way are named and service the corresponding parts identical to the arteries. Draining the posterior abdominal wall, the spinal cord, and the vertebral column are four large paired veins.
ABDOMINAL VEINS FUNCTIONSThe kidneys and the ureters drain their blood via the renal veins which empty into the inferior vena cava. The testicular vein is responsible for removing the deoxygenated blood from the male gonads, and in the female body the ovarian vein is responsible for the drainage of the female gonads.
The adrenal gland is served by the right suprarenal vein. All of these veins conjoin and empty their contents into the inferior vena cava. The left testicular and the left ovarian veins as well as the left suprarenal vein drain into the left renal vein. The inferior side of the diaphragm is serviced by the inferior phrenic veins that lead to the inferior vena cava.
ABDOMINAL VEINS DIAGRAM
The capillary sinusoid of the liver is then taken care of by the hepatic veins and meet the inferior vena cava directly beneath the diaphragm.
The venous drainage from the spleen, GI tract, and the pancreas go directly to the capillary sinusoid instead of taking a direct route to the inferior vena cava.