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What events in the cardiac cycle cause the first and second heart sounds?
The closing of the mitral and tricuspid valves create the "lubb" and the closing of the semilunar valves creates the "dubb"
What cause the semilunar valves to close?
what cause the aortic semilunar valve to close...greater pressure in the aorta than in the left ventricle
What cause the lubb-dupp heart sounds that are heard while talking an apical pulse?
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.
What can Cause a delayed loud noise in upstairs wall after flushing downstairs toilet?
Hydraulic shock from quick closing valves and can cause piping to rupture Hydraulic shock from quick closing valves and can cause piping to rupture
What two heart sounds do you hear when listening with a stethoscope and what specific event is happening to cause each sound?
The lub-DUB of the heartbeat is caused by the closing of two separate pairs of valves, in response to heart muscle contractions. Turbulent blood flow occurs as blood pushes against the valves. The first sound is caused by the closing of atrioventricular valves (mitral valve, tricuspid valve) that separate the upper chambers (atria) and lower chambers (ventricles) of the heart, as blood enters the ventricles. The second sound is caused by the closing of the semilunar valves at the exit of the ventricles (the right ventricle having pumped blood into the pulmonary artery and the left ventricle having pumped blood into the aorta). There are other specific heart sounds that occur, usually as a result of problems with the function of the heart.
When would a murmur occur in the cycle if the av valves were not closing properly?
A murmur would occur during the lubb portion of the cycle if the AV valves were not closing properly. Most heart murmurs do not cause the patient any problems.
When would a murmur occur in the lubb dupp cycle if the AV valves were not closing properly?
A murmur would occur during the lubb portion of the cycle if the AV valves were not closing properly. Most heart murmurs do not cause the patient any problems.
What cause the lub dup sound heart with a stethoscope?
The "lub-dub" sounds of the heart, heard with a stethoscope, are caused by the closure of the heart valves. The "lub" (first sound) occurs when the atrioventricular valves (mitral and tricuspid) close during ventricular contraction (systole). The "dub" (second sound) happens when the semilunar valves (aortic and pulmonary) close at the end of ventricular contraction (diastole). These sounds reflect the rhythmic pumping action of the heart and the movement of blood through the cardiac cycle.
What damage will faulty hydraulic lifters cause?
faulty lifters at the best will rattle, at the worst they will not lift the valves properly . valves not opening and closing properly will greatly interfere with the proper running of the engine.can also cause a push rod to come loose and fall into the engine, breaking or bending other parts
If timing pulley sheerd off DOHC 2.0 88prelude does this cause valves to hit pistons?
Not a for sure thing, but it's very possible. The opening and closing of the valves needs to be timed correctly, otherwise they could be open when the piston reached the top and damage could result.
Why are stomata and guard cells called turgor operated valves?
Stomata and guard cells are called turgor-operated valves because their opening and closing are regulated by changes in turgor pressure within the guard cells. When the guard cells become turgid from water uptake, they bow outwards and cause the stomatal pore to open. Conversely, when the guard cells lose water and become flaccid, the pore closes.
Does weak oil pump cause valves to rattle?
Yes it sure will, but it can also be the valves need adjustment.
