Flashcards on Thoracic Cardiovascular and Lung Anatomy
Thoracic Cardiovascular & Lung Anatomy: Student Guide
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Inferior vena cava
8 cards
Card 1
Question: Where does the inferior vena cava (IVC) originate anatomically?
Answer: From the confluence of the common iliac veins at the level of the L5 vertebra, just inferior to the abdominal aorta bifurcation.
Card 2
Question: Along which side of the aorta and vertebral bodies does the IVC ascend in the posterior abdominal wall?
Answer: It ascends on the right side of the aorta and the bodies of the L3–L5 vertebrae.
Card 3
Question: How does the IVC enter the thorax from the abdomen?
Answer: After passing through its fossa on the posterior liver surface, the IVC enters the thorax via the inferior vena caval foramen of the diaphragm.
Card 4
Question: Which veins form the starting tributaries of the IVC?
Answer: It starts from the left and right common iliac (iliac) veins.
Card 5
Question: Which IVC tributaries correspond to branches of the abdominal aorta?
Answer: Direct tributaries include the inferior phrenic veins (T8), right suprarenal (L1), renal (L1), right testicular/gonadal (L2), lumbar (L1–L5), common i
Card 6
Question: Into which vein do the left gonadal and left suprarenal veins drain before reaching the IVC?
Answer: They drain first into the left renal vein.
Card 7
Question: How does blood from the stomach, spleen, pancreas, and intestines reach the IVC?
Answer: Those veins empty into the hepatic portal vein, which carries blood to the liver; after processing, blood reaches the IVC via the hepatic veins.
Card 8
Question: Which vessels provide collateral communication between the IVC and the superior vena cava (SVC)?
Answer: Collateral vessels include the azygos vein, lumbar veins, and vertebral venous plexuses.