Question: When is the second sound of the heartbeat produced?
Answer: during inhalation
Disambiguated annotations:
qaPairs: question: What is typically the earlier component of the second sound of the heartbeat?
answer: aortic valve closure
A2
question: What is typically the later component of the second sound of the heartbeat?
answer: P2
pulmonary valve closure
question: What acoustical phenomenon within blood is associated with the second sound of the heartbeat?
answer: reverberation
reverb
answer: closure of semilunar valves
closure of pulmonary valve
closure of the aortic valve