2006-08-19 13:23:31 · 6 answers · asked by Ree J 3 in Science & Mathematics ➔ Medicine
OK,baby.You will learn this when you finish RN school.
6-7 weeks
2006-08-19 13:28:18 · answer #1 · answered by Anonymous · 1⤊ 1⤋
the heart is one of the first body systems forming in a young fetus. It is already there within 10-th day of the conception, the ultrasound test can detect the heart beat as early as 21 day since fetus is conceived.
2006-08-19 20:42:21 · answer #2 · answered by larisa y 1 · 1⤊ 2⤋
At five weeks a plate develops that is the heart, but doesn't beat until 6 weeks.
2006-08-19 20:56:33 · answer #3 · answered by JMPV 1 · 2⤊ 0⤋
The baby's heart start beating at 18 days after conception, others said that it occurs at or about 21 days or arround the 4th week after fertilizaztion. But what is true is that most mothers don't yet know they are pregnant at this early stage.
2006-08-19 20:49:07 · answer #4 · answered by gospieler 7 · 5⤊ 1⤋
Immediately after the heart starts to form. i.e. 4 to 5 weeks
2006-08-20 02:43:59 · answer #5 · answered by Gundruk 3 · 0⤊ 1⤋
In the 2nd month...it's viable at 22 weeks.
2006-08-19 20:30:15 · answer #6 · answered by Like Bugs Bunny on the moon... 2 · 1⤊ 7⤋