Heart rate: is the number of times your heart beats in a minute. This depends on certain factors, for example: if you are a young and healthy adult, your heart rate should be normal (for example 72 beats per minute). However, if you are a person under high levels of stress (but are otherwise healthy), your heart rate may become higher (for example, 94 bpm or higher).
Function of heart is naturally to pump blood into the blood vessels spanning the whole body. Its beating sound is actually the pumping process going on!
It beats faster means it pump faster
Beause your body has all this oxygen which has to go in your blood, so when you breathe faster your heart has to pump faster.
p.s This was answered by a 12 year old! :P
Yes
Your pulse rate is your heart rate.
because (i think) you're using your muscles more, which makes them tired, so more blood needs to be flown to them. your heart pumps faster because it has to pump more, and you breath faster because the purpose of blood is to bring oxygen throughout your body. so the harder you work, the more tired you get, and that's why it happens... i think. this isn't a definite answer.
your heart beats faster because when you do exercise you get out off breath so you breath in more oxygen, as you breath faster your heart rate will rise to pump blood around the body, by your heart pumping blood round the body you are getting more oxygen in your body.
fetus is very small, the heart is very small so to pump enough oxygenated blood thru the developing fetus it must pump much faster than than an adult heart
it increases too because it has to pump more blood to the lungs for it to breathe
your heart will pump faster
because when they're running the heart has to pump blood faster to power the body. the heart must pump very fast and it takes a minute to slow down.
it pumps blood to it to rechrive it and pump it through the body
Your pulse rate is your heart rate.
They have a heart. Pretty much like ours, but smaller and faster.
Because when your muscles are working they need more oxygen and nutrients, which they get from the blood. And for the blood to be able to carry more nutrients to the muscles the heart has to pump faster.
because (i think) you're using your muscles more, which makes them tired, so more blood needs to be flown to them. your heart pumps faster because it has to pump more, and you breath faster because the purpose of blood is to bring oxygen throughout your body. so the harder you work, the more tired you get, and that's why it happens... i think. this isn't a definite answer.
increases the heart rate
your heart beats faster in order to supply more blood to the body
Your heart has to pump more blood through your veins because of the energy you are using to exercise so your heart has to pump faster and harder
because when you exercise your muscles require more oxygen so your heart will beat faster to get the oxygen to the mucsles. since your blood goes through the lungs and your heart is beating faster you must breathe faster to get a sufficient amount of oxygen.
yes, it has to work to pump blood faster to carry the extra weight