2nd heart sound is characterized by all except______________?
Correct answer: C. Has longer duration than 1st heart sound
- A. Due to closure of semilunar valves
- B. Is occasionally split
- C. Has longer duration than 1st heart sound
- D. Marks the onset of diastole
Explanation
The second heart sound results from closure of the aortic and pulmonary valves, may be physiologically split, and marks the beginning of diastole. It is normally shorter than the first heart sound, so a longer duration is the exception.
Last updated
Practise Cardiovascular Physiology
43 free Cardiovascular Physiology MCQs from Physiology, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Exams that ask Physiology questions like this
Physiology is on 3 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.
Related questions
The first heart sound is produced by the_____________?
Normally, the rate of the heart beat in a human is determined by _________________?
Stroke output of each ventricle in normal adult is_____________?
Cardiac output is not affected by __________________?
All the heart valves are open during which stage of cardiac cycle __________________?