Identify the correct order in which blood passes through the heart s tour, start
ID: 97129 • Letter: I
Question
Identify the correct order in which blood passes through the heart s tour, starting at the right atrium: A. Tricuspid > Pulmonary > Bicuspid > Aortic B. Bicuspid > Pulmonary > Tricuspid > Aortic C. Mitral > Pulmonary > Tricuspid > Aortic D. Mitral > Pulmonary > Semilunar > Aortic Which of the following statements is/are FALSE concerning cardiac output (CO): A. If ventricular filling increased in duration, CO would decrease. B. Afterload is the pressure the ventricles must exceed to eject blood. C. The Frank-Starling Law states the smaller the preload, the greater the force of systolic contraction. D. More than one of the above statements is incorrect Which of the following DOES NOT influence heart rate: A. Proprioceptors B. Vagal stimulation of the myocardium C. Stroke volume D. Electrolytes E. Fitness Rapid, regular atrial contractions combined with an atrioventricular block such that nerve impulses fail to reach the AV node from the SA node is known as: A. Tachycardia B. An atrial septal defect C. Myocardial infarction D. Flutter E. Murmur Which is NOT a means for returning blood back to the heart: A. The respiratory pump B. The skeletal muscle pump C. The pressure generated by left ventricular contraction D. The closing of venous one-way valves E. All of the above are means for returning blood back to the heartExplanation / Answer
10. A. Tricuspid>pulmonary>bicuspid>aortic.
Poor oxygenated blood travels through the inferior and superior vena cava or coronary sinus and enters the right atrium. It passed through the tricuspid valce and enters the right ventricle. Then the blood moved through the pulmonary valve.
11. D. More than one of the above statements is incorrect.
Frank-starling law states that ventricular contraction becomes more forceful as the cardiac muscle cells are stretched.
12. D. Electrolytes doesn't influence heart rate
13. Rapid, regular atrial contractions combined with an atrioventricular block such that nerve impulses fail to reach the AV node from the SA node is known as E. Murmur
14. B. Skeletal muscle pump is not a means for returning blood back to the heart.