This is one of the mysteries of the human body. No one knows why the celles that develop into the heart in a fetus begin to vibrate and eventually develop into the regualr heart beat, just as no one knows why other cells when put in close proximity to these cells will begin to display the same activity. It just happens is the best we can say at this time.
Heart is one of the earliest organs to develop. The heartbeat can be detected by ultrasound as early as during 51/2 to 61/2 week of the pregnancy.
Because it has a heart.
21 days
There are many causes to low heart rate in unborn babies. One of the causes could be not enough oxygen to the baby.
because you run it increases the blood preasure therefore it causes the heart to beat faster
No you can not
moving around, emotion and what not
The nervous system causes the heart to beat faster when you exercise. It itself is not an organ but a system.
During pregnancy, the beat inside the stomach is typically the baby's heart beat. Babies have faster heartbeats normally than adults.
Your heart beat of course.
yess babies heart beat is usually not heard til week 6 because the heart isn't developed enough to beat until then.
The heart beat is the beating of the heart. Blood pressure is the amount of pressure the heart beat causes the blood to push against the blood vessels.
The heart beating ie. pushing blood around the body. Each pulse is a heart beat, which causes more pressure as it puts pressure behind the blood to move it.
Children. Just to emphasize what type of children; /YOUNG/ children or babies.
Exercising. Whatever always your heart beat go faster.