Portal hypertension is an abnormal increase in blood pressure defined clinically as hepatic venous pressure gradient 5 mmHg in the hepatic portal vein system. Causes of portal hypertension ...

You probably know at least a little bit about ocean circulation around the world, also known as currents ... belt,” which is a vast network of currents that constantly moves water around the entire ...

The heart is the driving force behind the avian circulatory system, and the vessels of the vascular system are the highways for oxygen, energy, and waste transport. Behind the feathers, a complex and ...

Birds are highly active creatures, capable of explosive speed and incredible stamina. These activities require an advanced respiratory system to oxygenate their blood and an efficient circulatory ...

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Nov. 21, 2024 — Scientists have discovered how long-term treatment of high blood pressure with commonly prescribed drugs can destroy the kidney's ability to filter and purify blood. The finding ...