an irregular heart beat is called?
400170
Irregular heart beat is called ARRHYTHMIA's\n\ntypes include :\nExtrasystole\nventricular premature contractions\nAtrial fibrillation\nAtrial Flutter \nComplete heart block\n\nBut murmurs are the sounds heared over the heart because of any disturbed BLOOD FLOW either due to irregular beats or incompetent valves
869365
There is not a voluntarty "part" of your heart.  The heart is controlled by the automic nervous system, comprised of the sympathetic and parasympathetic, which are your "fight or flight" portions of your nervous system.  Your somatic nervous system controls the voluntary muscles, like the skeletal muscles.\n\nCheck this site out:  http://163.1.0.40/wfsa/html/u05/u05_010.htm
600385
Cardiac cycle is the term used to describe the sequence of events that occur as a heart works to pump blood through the body. The frequency of the cardiac cycle is the heart rate.\n\nEvery single 'beat' of the heart involves three major stages: atrial systole, ventricular systole and complete cardiac diastole. The term systole is synonymous with contraction of a muscle. Electrical systole is the electrical activity that stimulates the myocardium of the chambers of the heart to make them contract. This is soon followed by Mechanical systole, which is the mechanical contraction of the heart.\n\nThe term diastole is synonymous with relaxation of a muscle.\n\nThroughout the cardiac cycle, the blood pressure increases and decreases.
44789
cardiac, smooth, and skeletal.
624205
1) Sinus tachycardia (as first person said)\n\nIf hemorrhage isn't corrected:\n2) Sinus bradycardia\n3) frequent premature beats\n4) asystole or ventricular tachycardia /fibrillation (death)
429801
the heart generates its own electrical impulses to stimulate the heart to beat . It is the SA node in the atria and the AV node in the ventricles. \n\nWhen patients have been diagnosed as brain dead - and on a ventilator ( a breathing machine )  - their heart is still beating - because the heart has its own built-in battery pack, so to speak .
992986
theyre probably PVCs or PACs (premature ventricular/atrial contractions). basically, a cell in the heart fires to early which makes it beat twice really fast, then your heart pauses for a brief second to allow itself to get back on track. i get hundreds to thousands of them a day, it kinda sucks. 10+ a minute when they are really acting up. lots of people get them and theyre completely harmless in most people, but you may want to consider getting checked out sometime because they can occasionally be symptom of other problems. but im not trying to scare you, most lof the time theyre harmless, as mine are. some of the common causes are too much caffeine, lack of sleep, smoking or drinking, and stress. but some people like me just get them for no reason. if youre getting a lot and they really bother you, the doctor can put you on a beta blocker which helps reduce them in some people. you can browse through old questions in the heart forum at medhelp.org lots of people have asked questions on them and you can learn a lot from reading the answers
61298
Irregular heart beats and palpitations are two entirely separate entities.\nIrregular heart beats premature, fast, or slow beats and are caused by an electrical "glitch" in the heart.  They are often benign, meaning they won't harm you.  They can occur because of drugs, including caffeine, diet pills, supplements, etc, because of medical problems such a high thyroid levels or electrolyte imbalances, because of significant medical problems, and also without any apparent "reason".  The medical tests performed for irregular heart beats includes EKGs, holter monitors to record your heart rhythm, event monitors and more.  These tests are performed to find out if there is a cause of the irregularity that needs to be "fixed".  The results are also used to predict whether any harm is likely to come to you, because of the irregular rhythm.  Many irregular rhythms do not require any treatment.  \nPalpitations are the SENSATION that your heart is beating too fast, too hard, too slow, or irregularly.  You can have palpitations with a totally regular heart rhythm.  They can also be caused by irregular rhythms, both dangerous ones AND non-dangerous ones.  Some people have palpitations because of anxiety, even if they don't actually feel anxious, anxiety can cause palpitations in these people.
662475
Irregular periods are just irregular periods. Are you asking if you are pregnant? Either way-SEE A DOCTOR!!!
180730
Are you saying that you have signs of a heart murmur? Have you checked your own heart beat with a stethoscope and check your blood pressure? A systolic murmur would include uncoordinated heart beats at the start of systole due to valvular problems in the heart...the 1st "lubb" sound you hear while taking someone's b/p. Have a nurse or doctor check it out before you assume. When I thought I was have a referred pain to my heart from on my left arm, my ECG proved me wrong. Get an Electrocardiogram done, if the PR interval and QRS complex shows atrial fibrillation with f-waves, then, you may be right. Otherwise, get the stress test to be sure. I am getting one done in a couple of weeks to double check. It's always good to check on one's health when in suspicion of any irregularities.
232077
heart block is used to describe a situation where the electrical signals that make the chambers of your heart beat (first the atria then the ventricles, the main pumping chambers) are not getting through the Atrio-ventricular node (a kind of electrical junction box in your heart). This could mean that the coordination between atria and ventricles is not present. It usually also means that there are missed beats or a slow heart beat. Heart block can be benign, ranging from the occasional dropped beat to quite dangerous with episodic loss of consciousness.\nThe term intermittent means that it is not happening all the time, only some of the time.\nIt is usually possible to tell whether any specific treatment is required based on ECG, a 24h heart rhythm recording, and the presence of symptoms. In some people, a permanent pacemaker is required to restore the normal electrical coordination in the heart. \n\nHope this helps
1153121
The term is a "premature ventricular contraction"  (aka PVC).  It is common and benign.  Although it feels like your heart stops, the large part of your heart actually beats earlier than it was supposed to have....then the signal comes through to tell it to beat...but it doesn't beat because it needs to reset after having just beat....then there is a slight pause until the next signal comes down telling it to beat.  It resumes completely normal function thereafter.  If you have many of these episodes or if you become light-headed or dizzy with them, then you should get it checked.  Otherwise it requires no medical attention.
1094628
becuase your heart stops for a split second
244732
the heart has four chambers,two atria and two venticles. during normal heart rate the atrial rate is the same as the ventricular rate.sometimes it so happens that cycles of short circuits start to take place in the heart muscle. the rate of atrial contraction hence increases. atrial flutter is when the atria are contracting at the rate of 200-350 and atrial fibrillation when the atria are contracting at the rate more than 500.
312922
Yes, in that they disturb the proper function of the heart in terms of how much blood it can pump out.\n\nArrhythmia is an abnormal heart rhythm. It may mean that the whole heart is beating too fast (tachycardia) or too slow (bradycardia), or it may be that the different bits of the heart have gotten out of synch with each other. The heart has four chambers: two small atria, and two larger ventricles. The ventricles push the blood out of the heart - the right to the lungs, where it gets oxygen and then comes back to the heart, and the left to the body. The atria collect the blood and dump it into the ventricles.\n\nNormally all the muscle of the atrium contracts at once, to push blood into the ventricle, while the ventricle is relaxed. Then the ventricle contracts to push the blood out of the heart, while the atrium is relaxed. In both atria and ventricles, you can get problems with either a) the whole thing contracting at once, like normal, but too fast, or b) the muscle of the chamber (atrium or ventricle) gets disorganized and starts contracting all at different times, so it wibbles around and can't push blood out properly.\n\nThe former is called tachycardia or flutter; in the atria it's atrial flutter (rate 250-350 typically, as opposed to normal heart rate 60-100), in ventricles, usually ventricular tachycardia (rate around 150-200). The latter is called fibrillation. Atrial fibrillation is not a huge deal but can predispose to stroke (because the inefficient contractions of the atrium mean blood hangs around in them, and can form blood clots, that then get spat out into the brain). Ventricular fibrillation, on the other hand, is immediately life-threatening and is what people get shocked for during resuscitation events.\n\nSo, although the heart muscle may be functional, the abnormal pacing means that the heart function itself is inefficient.
417595
from what i rememeber the heart makes two sounds, a heavy-thick (like bass) called 'dup' and a small thinner pitched one called 'lup'.\nthe 'dup' is due to the closure of the atrioventricular valces during systole (contraction - when the blood is pumped from the ventricles (which are the down compartment of the hearts) to the atriums (which are the upper ones). after this happens, the blood is passed through the aorta which has a valve to make the blood not go backwards (called semi-lunar valve) and when these valve close it makes the 'lup' sound !!! so it goes like this Lup-dup lup-dup lup-dup .............
649042
its your heart beating,\nif you hear it really often it could be a sign of anemia. which is easily treated.