The digestive tract and the liver are connected by the hepatic portal vein. This allows nutrients to pass from the digestive tract to the liver for processing.
Hepatic vein.
digestive
The afferent arteriole feeds directly into the glomerulus.
Touching the rim helps prevent spills by guiding the liquid flow directly into the vessel. It also allows air to flow back into the bottle, preventing glugging or splashing.
Capillaries.
hepatic portal vein
Straight out from the middle of the vessel on the left side.
The single vessel that drains blood from the digestive tract organs to the liver is the hepatic portal vein. Blood flow to the liver is unique, in that it receives both oxygenated and partially deoxygenated blood.
The vascular system signals for blood vessels to constrict or dilate. The nervous system, such as the spine, and the brain, work together to help blood vessels respond accordingly.
afferent arteriole
The coronary artery.
capillaries
heart