Which of the following is true about fourth heart sound `S4′
Correct Answer: Heard during ventricular filling phase
Description: Fourth heart sound occurs due to the late rapid filling phase of the ventricle, which occurs due to atrial systole. Since its frequency is usually less than 20Hz, it is not heard by an unaided ear.
Category:
Physiology
Get More
Subject Mock Tests
Practice with over 200,000 questions from various medical subjects and improve your knowledge.
Attempt a mock test nowMock Exam
Take an exam with 100 random questions selected from all subjects to test your knowledge.
Coming SoonGet More
Subject Mock Tests
Try practicing mock tests with over 200,000 questions from various medical subjects.
Attempt a mock test now