Examlex
Evaluate the expression without using a calculator.
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Arterial Duct
A blood vessel in fetuses that connects the pulmonary artery to the descending aorta, allowing blood to bypass the lungs.
Umbilical Cord
Cord connecting the fetus to the placenta, through which blood vessels pass.
Umbilical Arteries
Blood vessels that carry deoxygenated blood from a fetus to the placenta during pregnancy.
Blood Vessels
Blood vessels are tubular structures that carry blood throughout the body, including arteries, veins, and capillaries, each serving distinct functions in the circulatory system.
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