18 Questions
What is the primary function of the semilunar valves?
To prevent backflow of blood into the ventricles
What is the name of the blood vessels that supply oxygenated blood to the myocardium?
Coronary arteries
Which of the following is NOT part of the intrinsic conduction system?
Sympathetic nervous system
What does the P wave on an electrocardiogram represent?
The impulse across the atria
During which phase of the cardiac cycle do the atria contract simultaneously?
Systole
What is the formula for calculating cardiac output?
Heart rate x stroke volume
What is the primary function of the valves in the heart?
To allow blood to flow in only one direction
Which type of circulation strictly provides blood to the heart?
Coronary circulation
What is the function of the atrioventricular valves?
To separate the atria from the ventricles
How many valves are in the heart?
4
What is the primary function of the cardiovascular system?
To deliver oxygen and nutrients and remove carbon dioxide and waste products
What is the function of the cardiac conduction system?
To coordinate the heartbeat
What is the term for the system of blood vessels that carries blood from the right ventricle to the lungs?
Pulmonary circulation
What is the estimated total blood volume for an average adult?
4-6L
Where is the heart located in the body?
In the thorax between the lungs
What is the purpose of the serous pericardium?
To provide lubrication for the heart
What is the approximate weight of the heart?
Less than 1 lb
What percentage of total body weight is made up of blood?
8%
Test your knowledge of the heart's valves and associated great vessels, including the mitral valve, tricuspid valve, semilunar valves, and more. Learn about the heart's structure and function. Identify the different blood vessels and their roles.
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