
Biology of Humans 6th Edition by Judith Goodenough,Betty McGuire
Edition 6ISBN: 978-0134324876
Biology of Humans 6th Edition by Judith Goodenough,Betty McGuire
Edition 6ISBN: 978-0134324876 Exercise 13
You are nearly deafened by the first heart sound, which is caused by
A) the opening of the atrioventricular valves.
B) the closing of the atrioventricular valves.
C) the opening of the semilunar valves.
D) the closing of the semilunar valves.
A) the opening of the atrioventricular valves.
B) the closing of the atrioventricular valves.
C) the opening of the semilunar valves.
D) the closing of the semilunar valves.
Explanation
The opening of the atrioventricular valv...
Biology of Humans 6th Edition by Judith Goodenough,Betty McGuire
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