The pre-caval veins collect blood from

The precaval vein collects blood from

The post-caval vein collect blood from

The pre-caval vein is formed of

From where does hepatic portal vein collect the blood ?

Assertion (A): Veins have thick walls to collect blood from different organs. Reason (R): Blood in veins are not under pressure.

Renal vein which collects the blood from kidney is a tributary of

Hepatic portal system collect blood from

Fill in the blanks: The inferior venacava collects blood from _____________ and _______________.

Hepatic portal system collects blood from: