Examlex
During most of the 1970s, how is Iran best described?
Valve
A device or structure that regulates, directs, or controls the flow of a fluid by opening, closing, or partially obstructing pathways.
Plasma Proteins
Proteins present in blood plasma, responsible for various functions including clotting, defence against pathogens, and transport of substances.
Osmotic Balance
The regulation of water and solute concentrations in organisms to maintain a stable internal environment.
Systemic Circuit
This component of the cardiovascular system is responsible for transporting oxygen-rich blood from the heart to the rest of the body and bringing oxygen-poor blood back to the heart.
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