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प्रश्न
Which characteristic describes the direction of blood flow through the umbilical arteries?
विकल्प
From foetus to placenta carrying deoxygenated blood and metabolic waste
Bidirectional flow with variable oxygen content
From placenta to foetus carrying oxygenated blood
From foetus to placenta carrying oxygenated blood
MCQ
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उत्तर
The umbilical arteries carry blood in a centrifugal direction, from the foetus toward the placenta. This blood is deoxygenated and contains metabolic wastes generated by foetal metabolism. The small, thick-walled structure of these arteries enables them to transport blood effectively against pressure gradients.
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