What is the cause of the heart sounds "lubb-dupp"?
A) closing of the heart valves
B) flow of blood through the coronary arteries
C) the electrical signal as it moves through the AV node
D) the firing of the autonomic nerves to the SA node
Correct Answer:
Verified
Q31: The pulmonic and aortic valves
A)are atrioventricular valves.
B)"see"
Q35: Which of the following semilunar valves "sees"
Q37: Which of the following is an electrical
Q38: Complete the sequence: blood flows from the
Q39: What is the name of the valve
Q41: Which of the following is least descriptive
Q43: Which group is incorrect?
A) atrioventricular valves:tricuspid,bicuspid,mitral
B) layers
Q47: An accumulation of excess fluid in the
Q51: Which of the following is least true
Q56: A hole in the interventricular septum causes
A)
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