Complex sentence: Each portal venule courses alongside a hepatic arteriole and the two vessels form the vascular components of the portal triad, ultimately emptying into the hepatic sinusoids to supply blood to the liver.
Split into simpler sentences: Each portal venule courses alongside a hepatic arteriole and the two vessels form the vascular components of the portal triad. These vessels ultimately empty into the hepatic sinusoids to supply blood to the liver.