The heart sounds heard through a stethoscope are caused by the impact of the blood churning in the chambers.
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Q6: The _ sends out an electrical impulse
Q7: Statins are drugs that may be used
Q8: A person's total cholesterol level should be
Q9: After 4 to 5 minutes without blood
Q10: An arrhythmia is any change or deviation
Q12: A rapid heartbeat of more than 100
Q13: Which of the following best describes the
Q14: Thirty minutes of physical exercise is recommended
Q15: Cardiac muscle tissue,or _,makes up the major
Q16: Murmurs indicate some defects in the valves
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