MEDICAL
OVARIES AND FALLOPIAN TUBES
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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An unborn baby’s heart begins to beat how long after fertilization?
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3-4 months
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18-28 days
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5-6 months
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None of the above
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Explanation:
Detailed explanation-1: -Up until last year, my answer to this question has corresponded to the current textbook knowledge, which says that the cardiovascular system is the first organ system to function and that the human embryonic heart starts beating at 21 to 23 days after fertilization [6, 7, 8].
There is 1 question to complete.