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Questions and Answers
Which of the following lists the valves in the order through which the blood flows from the vena cava through the heart?
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 (correct)
- mitral, pulmonary semilunar, bicuspid, aortic semilunar
- aortic semilunar, pulmonary semilunar, tricuspid, bicuspid
- bicuspid, aortic semilunar, tricuspid, pulmonary 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?
The cardiac cycle consists of a distinct relaxation and contraction phase. Which term is used for ventricular contraction while no blood is being ejected?
- diastole
- isovolumetric contraction (correct)
- ventricular ejection
- isovolumetric relaxation
The first heart sound represents which part of the cardiac cycle?
The first heart sound represents which part of the cardiac cycle?
- atrial systole
- closing of the aortic semilunar valve
- closing of the semilunar valves
- closing of the atrial ventricular valves (correct)
The second heart sound represents which portion of the cardiac cycle?
The second heart sound represents which portion of the cardiac cycle?
The cardiac centers are located in which area of the brain?
The cardiac centers are located in which area of the brain?
Which of the cardiovascular system's circuits has blood poor in oxygen in its arteries?
Which of the cardiovascular system's circuits has blood poor in oxygen in its arteries?
The pericardial cavity is located in between the
The pericardial cavity is located in between the
The posterior interventricular sulcus
The posterior interventricular sulcus
The papillary muscles attach to the cusps of the atrioventricular valves by means of the
The papillary muscles attach to the cusps of the atrioventricular valves by means of the
The internal wall surface of each ventricle has large, smooth, irregular muscular ridges known as
The internal wall surface of each ventricle has large, smooth, irregular muscular ridges known as
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