Question

To

The two major heart sounds are a result of
S
Odurki
SUR
S
SAMI OLSUNinc una
E
COUCHEM
3 PLESS
contraction of the myocardium
HORPHABERENT
DHE S
O closing of heart valves
O changes in the blood flow rate through the chambers of the heart
O blood entering the atria in large volumes
PEETERL

Answer 1

healthy adults, there are two normal heart sounds, often described as a lub and a dub that occur in sequence with each heartbeat. These are the first heart sound (S1) and second heart sound (S2), produced by the closing of the atrioventricular valves and semilunar valves, respectively.