10 Questions
Which of the following lists the valves in the order through which the blood flows from the vena cava through the heart?
tricuspid, pulmonary semilunar, bicuspid, aortic semilunar
The cardiac cycle consists of a distinct relaxation and contraction phase. Which term is used for ventricular contraction while no blood is being ejected?
isovolumetric contraction
The first heart sound represents which part of the cardiac cycle?
closing of the atrial ventricular valves
The second heart sound represents which portion of the cardiac cycle?
closing of the semilunar valves
The cardiac centers are located in which area of the brain?
medulla oblongata
Which of the cardiovascular system's circuits has blood poor in oxygen in its arteries?
Pulmonary circuit
The pericardial cavity is located in between the
visceral and parietal layers of the serous pericardium
The posterior interventricular sulcus
is a groove between the ventricles on the posterior region of the heart
The papillary muscles attach to the cusps of the atrioventricular valves by means of the
tendinous cords
The internal wall surface of each ventricle has large, smooth, irregular muscular ridges known as
trabeculae carneae
test
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