The umbilical cord is a flexible tube that connects the baby to the mother's womb. It carries oxygen and nutrients from the mother to the baby and removes waste products from the baby's blood. The tube is essential for the baby’s growth and development during pregnancy. After birth, the cord is pinched and cut, and it eventually dries up and falls off, leaving a small belly button.

英語での「umbilical cord」の定義と意味

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