The blood flowing in the umbilical cord is:

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(B) The umbilical cord connects the foetus to the placenta. It contains two umbilical arteries and one umbilical vein. The blood circulating within th

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$100\%$ foetal

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(B) The umbilical cord connects the foetus to the placenta. It contains two umbilical arteries and one umbilical vein. The blood circulating within the umbilical cord vessels is entirely derived from the foetal circulatory system. This blood carries oxygen and nutrients from the placenta to the foetus and returns deoxygenated blood and waste products from the foetus to the placenta. Therefore,the blood in the umbilical cord is $100\%$ foetal in origin.

Column-$I$	Column-$II$
$A$. $1^{st}$ month	$i$. First movement of foetus
$B$. $2^{nd}$ month	$ii$. Major organ system
$C$. $3^{rd}$ month	$iii$. Foetal heart
$D$. $5^{th}$ month	$iv$. Limbs $\&$ digits

Similar Questions

In which order do the three germ layers appear during embryonic development?

Match the following:

Column-$I$ Column-$II$

$A$. $1^{st}$ month $i$. First movement of foetus

$B$. $2^{nd}$ month $ii$. Major organ system

$C$. $3^{rd}$ month $iii$. Foetal heart

$D$. $5^{th}$ month $iv$. Limbs $\&$ digits

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The egg undergoes cleavage and forms:

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