Where Does the Cardiac Action Potential (Cardiac Impulse)normally Originate

Q5: This is the hardest working cardiac chamber

Q6: This layer of the heart allows it

Q8: Which of the following structures "sees" unoxygenated

Q10: The pericardium is a part of the<br>A)

Q13: Which of the following semilunar valves "sees"

Q14: Which of the following is least related

Q18: The atrioventricular node (AV node)<br>A)is the pacemaker

Q41: Which of the following is not true

Q70: A hole in the interventricular septum causes<br>A)

Q96: The pulmonic and aortic valves<br>A)are atrioventricular valves.<br>B)"see"