2006-11-06 01:53:18 · 5 answers · asked by angel_halleluya 1 in Science & Mathematics ➔ Biology
Our heart is a pump, a very efficient one. The whole body consists of various circuits. And there are valves which control the flow of blood. Since the heart pumps blood, that is, it sends the blood at a certain pressure, the flood flows to various body parts and back, whatever the body position is, horizontal or vertical. This applies to the lowest part of our bodies (foot) too, when we stand up.
2006-11-06 02:06:18 · answer #1 · answered by r_ravoori 2 · 0⤊ 0⤋
Hi,
Blood is fluid that has own viscus level base on the blood group, Normally blood are flow, when there is pump (heart) work properly.
simple is that, it apply to newton's law....F=ma.
if you need more details and scientic information..contact me
2006-11-06 10:25:54 · answer #2 · answered by M.R.Palaniappa 2 · 0⤊ 0⤋
Your heart pumps blood out through your arteries and back through your veins under pressure throughout your entire body.
2006-11-06 10:01:41 · answer #3 · answered by Anonymous · 0⤊ 0⤋
Hi,
Ckeck out this website.
Go to the link below , click on the circulation system and flick through the chapters. I think it's chapter 9 or 10
http://www.skoool.ie/skoool/junior.asp?id=3403
2006-11-06 10:06:00 · answer #4 · answered by specs appeal 4 · 0⤊ 0⤋
one way valves in your legs.
when they conk out you get varicose veins.
2006-11-06 09:56:57 · answer #5 · answered by rauls ghost 4 · 0⤊ 0⤋