Anatomy
EKG
PE Skills
Histology
Miscellaneous
100
How many chambers does the heart have?
4
100
What does an EKG measure?
The electrical activity of the heart
100
What is the medical terminology for an abnormally fast heartbeat?
Tachycardia
100
Which chamber of the heart has the most muscle tissue?
Left Ventricle
100
Name the filling phase of the cardiac cycle.
Diastole
200
What valve allows blood to flow from the RA to RV?
Tricuspid valve
200
Which wave in the EKG represents the electrical signal that triggers ATRIAL contraction?
P-wave
200
What is medical terminology for an abnormally fast RESPIRATORY RATE?
Tachypnea
200
What are the three layers of the heart from inner most layer outward?
Endocardium, Myocardium, Epicardium
200
What is the name of the "pacemaker" of the heart?
SA node
300
What pulmonary vessel carries oxygenated blood?
Pulmonary VEIN
300
What is the HR of this patient?
~43 BPM
300
What is another name for a "heart attack?"
Myocardial infarction
300
What are the bundles of muscle fibers in the heart called?
Myofibrils
300
What causes Atherosclerosis?
The buildup of plaque on a vessel wall
400
Name a valve open during cardiac SYSTOLE?
Aortic and pulmonary valve
400
What is the name of the structure that transmits the electrical signal between the atria and ventricles?
Bundle of His
400
What value is considered a normal DIASTOLIC BP value?
80
400
Which ion is essential for cardiac contraction?
Ca2+
400
What structure(s) stabilize heart valve flaps to avoid back-flow?
Chordae Tendineae
500
Name an artery that supplies blood to the heart myocardium.
RCA, PDA, LCX, LAD, L./R. Marginal Arteries
500
Name a cardiac rhythm that you would defibrillate?
Ventricular Fibrillation (V-fib)
500
Where would you listen to the heart for the AORTIC valve?
Pt's right upper chest
500
Cardiac myocytes are special because they can form a functional syncytium that link cells mechanically and electrochemically. What structure provides the link and can be seen histologically?
Intercalated discs, specifically gap junctions
500
What body system is the main influence on the heart rate and strength of cardiac contractions?
Autonomic Nervous System