What is th signicance of hepatic portal system
Answers
▲The portal venous system is responsible for directing blood from parts of the gastrointestinal tract to the liver.
▲Substances absorbed in the small intestine travel first to the liver for processing before continuing to the heart.
Significance of Hepatic Portal Circulation:
Hepatic (hepato = liver) portal circulation detours venous blood from gastrointestinal organs (stomach and small intestine) through the liver before it returns to heart.
After a meal, hepatic portal blood is rich in absorbed substances.
Liver stores some and modifies others before they pass into the general circulation.
For example, liver converts glucose into glycogen for storage hence maintains blood sugar homeostasis.
It detoxifies harmful substances and destroys bacteria by phagocytosis.
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