12 Questions
What causes the 'LUB' sound in the heart?
Closing of the atrioventricular valves during ventricular contraction
Where does deoxygenated blood go after filling the right atrium?
Moves to the pulmonary arteries
What happens when pressure builds up in the left atrium?
Mitral valve opens
What is the function of the pulmonary circulation?
Exchange carbon dioxide for oxygen in the lungs
What is the main function of the thinnest blood vessels?
Exchanging materials between blood and cells
What is the role of valves in the cardiovascular system?
Preventing the backward flow of blood
What is auscultation in medical terms?
Listening to internal body sounds using a stethoscope
Who was the first to show that the heart and blood vessels form a continuous closed circulatory system?
William Harvey
Which type of circulation involves the blood passing through the blood vessels?
Closed circulatory system
In which system does the hemolymph or circulating fluid in invertebrates not pass through enclosed tubes?
Open circulatory system
Where does gas exchange take place in an open circulatory system?
Hemocoel network
Which component of the circulatory system involves transporting blood away from and back to the heart?
Blood vessels
Test your knowledge of the circulatory system basics, including the flow of blood in the heart and systemic circulation, as well as the 'LUB DUB' sounds produced by the heart during contraction and relaxation.
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