2006-07-26 20:32:40 · 7 answers · asked by MARUTHI R 1 in Science & Mathematics ➔ Biology
Also depends on your body weight. The bigger you are, the bigger your vasculary system is.
I think I remember reading something about 2-5 minutes... But don't quote me on that.
2006-07-26 20:37:50 · answer #1 · answered by Just me 2 · 0⤊ 0⤋
7
2006-07-26 20:37:34 · answer #2 · answered by AXE 3 · 0⤊ 0⤋
The rate, or velocity, of blood flow varies inversely with the total cross-sectional area of the blood vessels. As the total cross-sectional area of the vessels increases, the velocity of flow decreases. Blood flow is slowest in the capillaries, which allows time for exchange of gases and nutrients.
Resistance is a force that opposes the flow of a fluid. In blood vessels, most of the resistance is due to vessel diameter. As vessel diameter decreases, the resistance increases and blood flow decreases.
Very little pressure remains by the time blood leaves the capillaries and enters the venules. Blood flow through the veins is not the direct result of ventricular contraction. Instead, venous return depends on skeletal muscle action, respiratory movements, and constriction of smooth muscle in venous walls.
Echocardiograph machines obtain images of the heart using echoes from ultrasonic pulses. The machines also measure the velocity of the blood flow into and out of the heart's chambers as the heart relaxes and contracts. This velocity measurement appears on the instrument's screen as an image that takes on a wavelike shape (the velocity wave) with each heartbeat — the trough of the wave corresponds to the slowing of the blood flow, and the peak of the wave corresponds to speeding up of the blood flow.
2006-07-27 03:19:01 · answer #3 · answered by Ashish B 4 · 0⤊ 0⤋
The fastest blood will be coming out of your aorta because its the first artery in which blood is pumped into. The exact speed will vary from person to person (e.g. blood pressure, size, athletic ability), but also it varies depending on how fast your heart is beating at the time. Also, blood velocity varies in parts of the body, slowest in the capillaries and veins furthest away from the heart, and fastest in the arteries closest to the heart.
2006-07-26 20:58:09 · answer #4 · answered by Adelbert V 1 · 0⤊ 0⤋
depends on the state you are in
normal for humans is 8952 feet per hour find it on this address
http://www.pubmedcentral.gov/pagerender.fcgi?artid=434655&pageindex=11#page
2006-07-26 20:42:18 · answer #5 · answered by Raineli 3 · 0⤊ 0⤋
Depends on what you are doing.
2006-07-26 20:35:47 · answer #6 · answered by Tom D 3 · 0⤊ 0⤋
normally it is 3 cm/sec.
2006-07-26 20:41:12 · answer #7 · answered by Anonymous · 0⤊ 0⤋