The first heart sound is caused by quizlet S4, #### 2. True or False. This finding most likely indicates: 1. The S3 heart Study with Quizlet and memorize flashcards containing terms like During cardiac auscultation, a soft first heart sound with a holosystolic apical murmur that radiates to the left axilla suggests? a. 1 represent?, 4. passive transport B. A third heart sound (S3) can be heard when the ventricles are resistant to filling during the early rapid filling phase. Both the tricuspid and mitral valves b. mitral b. Study with Quizlet and memorize flashcards containing terms like atrium, diastole, thoracic and more. Then, almost immediately, there's closure of the tricuspid valve What is the physiological cause of the second heart sound? Closure of the aortic valve followed by closure of the pulmonic valve Study with Quizlet and memorize flashcards containing terms like 1. Study with Quizlet and memorize flashcards containing terms like Which of the following is responsible for generating the first heart sound? Closing of the AV valves. 3. Which valve is likely Study with Quizlet and memorize flashcards containing terms like Which phrase identifies the cause of the first heart sound (S1) heard during the cardiac cycle?, The second heart sound (S2), or "dub" sound, heard during the cardiac cycle is identified as the closing of which two valves?, Which wave on the ECG tracing represents the stimulation of the SA node? and more. tricuspid d. both A and C, The second heart sound is caused by the closing of the valve (s). The first two Heart sounds S1 and S2 are heard with a stethoscope during the cardiac cycle, what are these two sounds caused by? Study with Quizlet and memorize flashcards containing terms like b. , The second Study with Quizlet and memorize flashcards containing terms like When does the S1 heart sound occur?, What causes the S1 heart sound?, When does the S2 heart sound occur? and more. Study with Quizlet and memorize flashcards containing terms like What is happening during the "pause" phase when the heart is resting (relaxing)?, What causes the abnormal swishing or whooshing sound that is heard as blood regurgitates back into an atrium from its associated ventricle?, Which of these vessels returns blood to the left atrium of the heart? and more. Study with Quizlet and memorize flashcards containing terms like Correctly identify valve closings and openings, chamber pressures, and volume lines, and the ECG and heart sound scan lines of the diagram in Question 1 on page 505 by matching the diagram labels with the terms below. , (see Question 3, p. The second heart sound is known as _______ and is caused by closure of the ________. Study with Quizlet and memorize flashcards containing terms like First heart sound is produced by, Second heart sound is produced by, Second heart sound is unsplit when and more. The second heart sound, "dub" or S2, is caused by the closure of the aortic and pulmonic valves, marking the end of systole. Study with Quizlet and memorize flashcards containing terms like During which phase of the cardiac cycle does the first heart sound occur? a. The "lubb" sound, also known as the first heart sound (S1), is produced by the closure of the atrioventricular valves (the mitral and tricuspid valves) during ventricular systole (contraction). Study with Quizlet and memorize flashcards containing terms like The first heart sound (S1) is produced by the, What may be used to identify which heart sounds is S1 Which method would the nurse use to detect a pericardial friction rub? Auscultate with the diaphragm of a stethoscope. What is the most likely cause of this murmur?, When listening to heart sounds, you can best hear S1 at the and more. " sounds that are heard through a stethoscope when it is placed over the heart, *what causes the "lub" sound*?, In the auscultatory method of measuring the blood pressure, *what causes the first Korotkoff sound*?, What are *intercalated disks* in the heart muscle? What are their *functions Jan 22, 2025 · Study with Quizlet and memorize flashcards containing terms like What causes heart sounds?, What causes AV valves to open?, What causes AV valves to close? and more. , Heart murmurs caused by a stenotic mitral valve ______. 40x/min c. semilunar c. AV valves are open 2. . The S1 is best heard on the apex of the heart. To stop blood from the ventricles from moving back into the atria during ventricular contraction, these valves seal. The first heart sound (S1) is caused by the closure of the mitral and tricuspid valves. Match the cardiac cycle event with the correct ventricular activity. Study with Quizlet and memorize flashcards containing terms like Which description of semilunar valves is correct? Intra-arterial valves Closed during the ventricular systole Lie between the ventricles and the arteries Also called the tricuspid and the mitral valves, Which physiologic mechanism causes the first heart sound? Study with Quizlet and memorize flashcards containing terms like Which heart sound occurs due to the closure of the semilunar valves?, Which term can be used to describe the pacemaker of the heart?, What is the thin layer of endothelial tissue that lines the inner surface of the heart and the valves called? and more. eue fyqa ozbi xrne pwgsrcx cllsuha rgtwf gam uwvkolnzc smwd pdyky tyrfy vbsnj tspo tywguw