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This is a normal physiological state known as respiratory sinus arrhythmia.
The parasympathetic ("flight" component of fight or flight reaction) division produces a nerve that attaches to the heart, known as the vagus nerve.
During inspiration, the nucleus ambiguus in the medulla (lowest portion of the brainstem and controls our most basic instincts) sends off more action potentials to the vagus nerve, that depresses the heart's pacemaker, the sino atrial node, lowering the heart rate. During expiration, the nucleus ambiguus remains unstimulated and the heart rate appears to fall.
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Why does exercises make your heart beat faster?
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.
Why do you breath slower when you are at rest?
When you are at rest, or sleeping, your heart beats slower. Because it is beating slower, blood travels more slowly through your body, and therefore more slowly through your lungs. As a result, you breath slower. When you do vigorous activity, your heart beats faster to supply blood to your body cells faster. This causes blood to race through your body and lungs, requiring you to breath a lot faster to keep up with the amount of blood that needs oxygen from your lungs.
How does exercise affect heart rate?
when you excercise, your body needs more oxygen. what provides oxygen? blood. so since the heart pumps blood, it has to pump faster in order to supply the extra oxygen needed. that is why when you excercise, you breath faster and deeper, and your heart rate increases. this is especially true when you are doing areobic excercises, which are designed to increase heart rate.
When you run your body cells need more oxygen Why do you think heart beats faster and you begin to breath faster?
As you exercise, your heart begins to beat faster and pushes more blood throughout your body. It needs oxygen to do this. You start to breathe faster so that your respiration system can keep up with your body and blood flow.
Can love cause shortness of breath?
You know the saying "you take my breath away?" sometimes you get so anxious/nervous maybe? and your heart beats faster and pumps more blood to your lungs and you can feel short of breath.
Why does a girl breath hard during french kissing?
Kissing and being nervous increases the heart rate, pumping more blood which requires more oxygen... therefore you have to breath faster.
Why you breath faster when you are frighten?
because the brain thinks youre panicking, and when you panick, you need more blood going through your system. so then the brain tells the heart to beat faster to get alot more blood flowing.
How does exersice affect the heart rate?
exercise incresses your heart rate because your heart pumps faster to push the blood threw your irculatory system to make your muscies move better and to your respiratory system to make you breath faster so you get enough oxygen in you
Why does a runner breathe heavier she is exercising than when she is asleep?
Well, when you are running, your heart beats faster. when your heart beats faster, taht means it is trying to get more blood to your body. when you breath, it helps that prosses. when you are asleep, you are not working hard, are you? it is as easy as that.
Why do your heart beats faster when you excercise?
The heart beats faster when we exercise because the heart pumps more blood and the body also needs more blood
Why do you breathe faster when you exercise?
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.
What do you use to breath the lungs or the heart?
You use your lungs to breath. Your heart pumps the blood round your body (including into and out of the lungs where gas exchange occurs when you breath).
