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1162
1162
11.11.2021 • 
Physics

The contraction of the ventricles is referred to as _, and the period of ventricular relaxation is called _ . The
monosyllables describing heart sounds during the cardiac
cycle are _. The first heart sound is a result of closure of
the _ valves; the second heart sound is caused by closure
of the _ valves. The heart chambers that have just been
filled when you hear the first heart sound are the o, and
the chambers that have just emptied are the (7). Immedi-
ately after the second heart sound, the (8)_ are filling with
blood, and the (9)_are empty. Abnormal heart sounds, or
(10) , usually indicate valve problems.

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