Heart Lecture Flashcards
Which is the correct pathway for the cardiac conduction system?
SA Node
AV Node
Bundle Branches
Purkinje Fibers/ Subendocardial
Conducting network
The most posterior AV valve of the heart
Bicuspid valve
What cardiac arrhythmia is considered the hallmark of a heart attack?
V-Fib
What is the 3rd deflection (bump) on an EKG called?
T wave
What opens the semilunar valves?
Blood pushing up from the ventricles
Which of the following is described as “chest pain from a partial obstruction of coronary blood flow”
Angina pectoris
Complete the calculation. You may use the calculator included with Proctorio:
Cardiac Output of a patient is 2.5 L/min. Her heart rate is 80 beats per minute. What is her stroke volume? In other words how much blood is she pumping out with each beat? Convert to ml.
31.3 ml/beat
What closes the AV/Bicuspid/Tricuspid//Mitral valves?
Blood pushing up from the ventricles
What is the 3rd deflection (bump) on an EKG called?
T wave
The most posterior valve of the heart is the
Bicuspid valve
Where does the pulmonary circuit lead to and from?
Lungs
The upward slope of an action potential is a period of what?
Depolarization
Where does the systemic circuit not lead to and from?
Lungs
When a QRS complex shows up on an EKG, what just happened in the heart?
The Ventricles contracted, the AV valves shut and the 1st heart sound is heard
What is the name of the 1st blood vessel that was fixed in the surgery video the widowmaker?
LAD - Left Anterior Descending Artery
