A normal heart beat generally consists of 2 distinct heart sounds, informally termed 'lub' and 'dub'. The first heart sound (lub) occurs at the beginning of the heart contraction (systole) and is the sound of the valves between the atria and ventricles closing. The second heart sound (dub) occurs at the end of the contraction, and is the sound of the valves between the major arteries and the ventricles closing.
the dum (beat) sounds comes when the blood has pump your heart. In min you should least have 72 beats
The contraction and expansion of the heart itself as it pumps blood.
The "lubb" sound is produced by the closing of the Atrioventricular (Bicuspid and Triscuspid) valves , while the "dupp" sound is produced by the closing of the Semilunar (Aortic and Pulmonary) valves.
It refers to the sound the heart makes, heard through the stethescope. lub (S1) is made when the atrioventricular valves in the heart close. dupp (S2) is made when the semilunar valves in the heart close.
heart sounds
Lupp and Dupp.
heart sounds
The closure of mitral and tricuspid valves causes the first heart sound. The second heart sound is produced by the closure of semilunar valves (pulmonic and aortic valves).
The closing of the valves in the heart. The first sound is caused by the closing of the atrioventricular valves within the heart. The second sound is caused by the shutting of the aortic and pulmonary valves.
Lup and dup, or lupp and dupp, and sometimes also called lubb and dupp are the heart sounds. They are produced when the two different types of valves in the heart close, the atrioventriculars and the semilunars.
Actually , the heart beat is heard when the heart valves closes ! The sounds are described as "lupp-dupp"
no. it occurs at the beginning of isovolumetric relaxation.
It really is lubb dupp and it is the sound of the 4 valves closing, two at a time. This occurs during one heart beat.
The heart of a human, or any creature with a heart, does not literally beat. The beating noise or movement of your heart you can feel especially when you have just done physical activity, is the valves slumming shut in sequence. The first sound is the sound of the atrioventricular valve closing at the beginning of ventricular contraction; the second is the sound of the pulmonary and aortic valves shutting at the end of ventricular contraction.