Label the Heart
Label #8
Aorta
Epicardium
What is the outermost layer of the heart called?
Right coronary artery
What vessel supplies blood to the SA node?
SA node
What cardiac tissue initiates the heart's electrical impulse?
Under right clavicle
Where should the white lead be placed?
Identify #13
Left Ventricle
Mitral/Bicuspid valve
Which valve is located between the LA & LV?
Supply oxygenated blood to the heart muscle
What is the primary function of coronary circulation in the human body?
Delay and transmit the electrical impulse to the ventricles
What is the role of the AV node?
Machine, lead wires, electrodes, paper, supplies
What should be checked during daily inspection of EKG equipment?
Label #7
Posterior Descending
Mitral/Bicuspid valve
Which valve separates the left atrium from the left ventricle?
Left Circumflex Artery and Left Anterior Descending Artery
What are the branches of the LMCA?
Transmits electrical impulses from the AV node to the bundle branches
What is the function of the Bundle of His?
.04 seconds
What does each small horizontal square on standard EKG paper represent in time?
Label #4
Right Coronary Artery
The Coronary sinus empties into the RA
What is the first step of Coronary circulation?
Left coronary artery
Which blood vessels specifically supply oxygenated blood to the left ventricle?
T-wave
What represents re-polarization of the ventricles?
Sensitivity
What regulates the height of the waveforms on the EKG tracing?
Label #12
Circumflex Artery
Right atrium, right ventricle, left atrium, and left ventricle
What are the names of the four chambers of the heart in order of blood flow?
How does the heart ensure its own blood supply?
Coronary perfusion occurs during diastole
RCA bonus feature
What coronary vessel makes the LPF more resistant to ischemia?
10
How many electrodes needed for 12-lead ECG?