Multiple Choice
Under what condition will the AV node become the pacemaker?
A) When its rate of spontaneous depolarization exceeds that of the ventricular conduction cells
B) As a normal response to sympathetic nerve discharge
C) When its rate of spontaneous depolarization exceeds that of the SA node
D) In the presence of normal sinus rhythm
Correct Answer:
Verified
Correct Answer:
Verified
Q87: What is the valvular response to the
Q88: In which structure is the oxygen saturation
Q89: Which structure connects the cusps of the
Q90: The correct sequence is: Blood flows from
Q91: Describe the valvular response to the relaxation
Q93: The heart<br>A)lies within the mediastinal and thoracic
Q94: Which group is incorrect?<br>A)Semilunar valves: pulmonic,aortic<br>B)Atrioventricular valves:
Q95: Which of the following is true of
Q96: The pulmonic and aortic valves<br>A)are atrioventricular valves.<br>B)"see"
Q97: Which of the following is part of