Question: what are the three components of the portal triad?
Answer: Figure 5: Portal triad. The portal triad (or, portal tract) contains three major structures: portal vein (PV), hepatic artery (HA), and bile ductule (BD). Figure 6: Hepatic blood flow. In the hepatic lobule, blood enters the lobule via the portal vein and hepatic artery, located within portal triads (PT).