16 Questions
What is the term for the contraction of the ventricles?
Systole
What is the formula for calculating cardiac output?
CO = HR x SV
What percentage of total blood volume is pumped out of the ventricles during each beat?
60%
What is the term for the degree of stretch of cardiac muscle fibers?
Preload
What is the result of increased contractility in the heart?
Increased stroke volume
What is the term for the pressure that the ventricles must overcome to eject blood?
Afterload
Which structure separates the right and left atria?
Interatrial septum
What is the outer, thin membrane fused to the heart?
Epicardium
What is the function of the chordae tendineae?
To anchor the valves to the papillary muscle
Which valve is located between the left atrium and left ventricle?
Bicuspid valve
What is the purpose of the sinoatrial (SA) node?
To generate the heartbeat
What is the name of the bundle that connects the atria and ventricles?
Bundle of His
What is the name of the wave that represents ventricular depolarization on an electrocardiogram?
QRS complex
What is the name of the sac that surrounds the heart?
Pericardium
What is the name of the valve that separates the right ventricle from the pulmonary trunk?
Pulmonary semilunar valve
What is the name of the layer of tissue that lines the heart chambers?
Endocardium
Test your knowledge of the heart's gross anatomy, including its chambers, location, and surrounding structures. Learn about the pericardium, its layers, and the pericardial cavity. Get ready to ace this quiz on the heart!
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