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What else can I help you with?
What two chambers contract last in the heart?
During diastole the atria fills with blood.
What causes atrial fibrillation?
the heart beat is completely irregular. The atrial muscles contract very quickly and irregularly; the ventricles, the heart's two large lower chambers, beat irregularly but not as fast as the atria
What is atrial fibrillation and flutter?
abnormal heart rhythms in which the atria, or upper chambers of the heart, are out of sync with the ventricles, or lower chambers of the heart. In atrial fibrillation, the atria "quiver" chaotically and the ventricles beat irregularly
What is the scientific name for the contraction of the heart?
The scientific term for the contraction of the heart is "systole." This is when the heart muscle contracts to pump blood out of the heart's chambers and into the circulatory system.
The p wave on an ecg is described as a positive deflection that corresponds to what?
The P wave corresponds to the atrial contraction... the 'beat' of the upper chambers of the heart. The QRS complex correponds to the ventricular contractoins.. the 'beat' of the other two chambers. The T wave represents relaxation of the heart muscle.
How many times does the heart beat during a single heart beat cycle?
2 times
Why heart beat increases during faint?
because the pressure of our blood increases which goes to our heart and so when fainting the heart beat increases
What are the slower heart chambers in the heart?
The heart has two top chambers called atria that receive blood from the body on the right side and from the lungs on the left side, and two bottom, muscular chambers that pump blood to the lungs and body respectively. There is a rate control center in the right atrium that tells the atria to beat first and then, after a small delay, the ventricles to beat. So all the chambers beat at the same rate under normal conditions. If there is a problem with the conduction (i.e. the communication system) between the atria and ventricles, the ventricles may not get all the messages to beat and will be slower... In some patients the ventricles may decide to start beating faster than the atria but this is very abnormal...
What type of muscle is a heart?
The heart or "Cardiac muscle" is myogenic meaning that it will independently contract without a stimulus. The nerve impulses in the heart are merely to regulate the natural beat of the heart.
During pregnancy does your stomach beat faster than your heart rate?
During pregnancy, the beat inside the stomach is typically the baby's heart beat. Babies have faster heartbeats normally than adults.
Does the top half of your heart beat differently from the bottom part of your heart?
No you heart beats as one. It has its own electric pulse of some kind, which tells individual tissues and cells when you beat. There are electrical nodes which act as a circuit. In a normal working heart the beat originates in the sinus node in the right ventrical, the current travels across the chambers (filling them) then initiates the second node (cant remember the name) which causes the contraction of the lower chambers (pushing the oxigenated blood out through the aorta and to the body).
Why do you have 3 slits in your heart?
I'm unsure of what you mean by slits... I assume you mean either the different chambers or the valves. The heart is divided into chambers as to allow the oxygenated blood and the deoxygenated blood to stay separated. As well, the different chambers in the heart give the heart two distinct sides, which beat one after another giving us the 'Da-dum' heartbeat that we're so used to. The valves help to ensure the blood flows in only one direction in the heart. :] There is also the septum, which is the big divider in your heart - which would be used to created the different chambers. :]
