A Baby’s Heartbeat Can Be Detected At 16 Days

A Baby’s Heartbeat Can Be Detected At 16 Days:

“A baby’s first heartbeat happens as early as 16 days after conception, a new study has discovered.
Until now, researchers thought that the first time our heart muscle contracted to beat was at 8 days after conception in mice which equates to around day 21 of a human pregnancy.

Now, a team funded by the British Heart Foundation (BHF) at the University of Oxford have found it is far earlier. They have demonstrated earlier beating of the heart in mouse embryos which, if extrapolated to the human heart, suggests beating as early as 16 days after conception.

In the study, published in the scientific journal eLife, researchers studied the developing mouse heart and found that the muscle started to contract as soon as it formed the cardiac crescent – an early stage in
heart development.

In mice, this crescent forms 7.5 days after conception, which is equivalent to day 16 in the human embryo.”

Source: http://www.dailymail.co.uk/sciencetech/article-3833015/

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