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How does venous pressure rise during 2nd heart sound?
The venous pressure increases during the second heart sound because of the increased negative pressure. 2nd heart sound heard when AV valves close,ventricular diastole
The monosyllables describing heart sounds during the cardiac cycles are what?
Lubb dubb corresponds to the heart sounds heard during systole and diastole, respectively.
What is the medical term meaning an abnormal sound heard during auscultation of an artery?
ventricular fibrillation (v-fib)
What is heart Fibrillation?
Atrial fibrillation is where the electrical impulses within the atria become very rapid and irregular. Atrial rates are usally between 300- 400 BPM or more. How it can happen: 1) Electric shock 2) ion imbalance within heart cells 3) Re- entry pathway. For more information please contactHeartquestionsanswerd@hotmail.co.uk We will answer your question for FREE however use this information as a guide ONLY. I am NOT a doctor but I have been studying the heart for many years and the information here is up=to date.Fibrillation is a medical term and refers to the quivering of a muscle, usually in the heart, as opposed to it contracting properly. Due to uncoordination of the muscle fibrils. Common terms heard are atrial and ventricular fibrillation, the first meaning that the atria of the heart (chamber that fills with blood) is not working well. When ventricular fibrillation occurs, only a small amount of blood is pumped out of the heart. This is the more serious of the two conditions.
How many seconds are in one cardiac cycle?
The cardiac cycle is the sequence of events that makes up one heartbeat: * Oxygenated blood enters the left atrium of the heart under high pressure from the pulmonary vein, and deoxyenated blood enters the right atrium of the heart under low pressure from the vena cava. * The atria gradually fill and become distended. As they fill up the pressure in the atria exceeds the pressure in the ventricles, and the tri and bicuspid valves are forced open and some blood enters the relaxed ventricles. This stage is called diastole. * The atria then contract, in a stage called atrial systole, and blood is forced into the ventricles. Almost immediately after atrial systole, (approximately 0.1 seconds after) ventricular systole takes place where the ventricles contract. The bi and tricuspid valves slam shut, and the first heart sound 'Lub' is heard. * As pressure in the ventricles exceeds pressure in the aorta and pulmonary artery, the semilunar valves are forced open, and blood enters these elastic walled vessels. * Ventricular diastole follows. Some blood will tend to return back into the ventricles, but this causes the semilunar valves to slam shut. The second heart sound 'Dub' is heard. * The repeated relaxing and recoiling of the elastic fibres in the walls of the arteries as a result of ventricular systole forces blood along the arteries in a series of pulses. * The further away from the heart the blood is the less pronounced the pulse. * This whole series of events takes, on average, 0.8 seconds.
What is normal heart sounds heard while the heart is working?
Valves opening and closing and blood flowingThe normal action of the heart, the pumping of the chambers and the closing of the valves.Closing of the valvesLub = closing the AV valvesDub = closing of the semi lunar valvesThe heart beats when the blood pumps
What cause heart sounds S3 and S4?
S3 heart sound is heard after the S2 heart sound (the sound made by the closure of the aortic and pulmonary valves following systole). It therefore happens in early-mid diastole, when the ventricles are beginning to fill. The sound is caused by a vibration of the ventricles as they encounter blood flow. Though an S3 may be normal in children and young adults, in other populations it may indicate a pathology in 1) a higher than usual amount of blood returning to the ventricle (such as in hypervolemic states), or 2) a stiff ventricle that's more prone to reverberation (e.g. remodeling secondary to heart failure) . S4 is also due to a vibration in the ventricle wall but occurs later in diastole, when contraction of the atrium forces the final amount of blood into the ventricles. The vibration occurs because the ventricle is too full to contain the additional blood. This can occur in pathologic states such as ventricular hypertrophy.
What are bilateral basal crepitations?
crackles or rattling sound heard on the base of the lung .. bilateral ones usually suggesting mitral stenosis or left ventricular failure ..
How can atrial septal defects be identified?
Abnormal changes in the sound of the heart beats can be heard when a doctor listens to the heart with a stethoscope. In addition, a chest x ray, an electrocardiogram (ECG, an electrical printout of the heartbeats), and an echocardiogram
What is a whistling sound heard during breathing?
Stridor
What is the whistling sound heard during breathing?
wheezing
Were there speakers during the holoucaust?
No the technology wasn't even heard of.
