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1
NR507 MIDTERM EXAM QUESTIONS AND
CORRECT DETAILED ANSWERS (VERIFIED
ANSWERS) ||ALREADY GRADED A+||NEWEST
VERSION
Quiz: How does blood flow through the heart?
Ans: Deoxygenated venous blood → Sup. Vena Cava → Right Atrium
→Tricuspid (AV) →Empties into R. Ventricle (& it contracts) → Blood ejected
through Pulmonary Valve → Pulmonary Artery → Lungs to be Oxygenated →
Pulmonary Veins → L. Atrium → Mitral (AV) → L. Ventricle (pumps with each
contraction) → Aortic Valve → Aorta → Body
Quiz: What is systole?
Ans: Contraction of the heart which pumps blood
Quiz: Diastole
Ans: Relaxation of the heart
Quiz: What produces S1 and S2 sound?
o
o
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2
Ans: closing of the heart valves
Quiz: What produces S1?
Ans: The mitral and tricuspid valves which close in systole
Quiz: What produces S2 sound?
Ans: The closing of the aortic and pulmonic valves in diastole
Quiz: What is cardiac output?
Ans: the volume of blood pumped out by each ventricle per minute
Quiz: What is stroke volume?
Ans: amount of blood pumped out by each ventricle with contraction
Quiz: What determines cardiac output?
o
o
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3
Ans: stroke volume and heart rate
Quiz: What is preload?
Ans: the degree of stretch on the heart before it contracts, related to
ventricular filling, end diastolic pressure, amount of blood entering the ventricle
during diastole
Quiz: What is afterload?
Ans: resistance left ventricle must overcome to circulate blood
Quiz: What is contractility?
Ans: Normal ability of muscle to contract at a given force for a given stretch. It
is independent of preload/afterload
Quiz: Will sustained tachycardia result in increased or decreased
stroke volume?
o
o
© 2025 TestTrackers
WhatsApp or call o Resources & Updates: [Testtrackers - Stuvia US]
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1
NR507 MIDTERM EXAM QUESTIONS AND
CORRECT DETAILED ANSWERS (VERIFIED
ANSWERS) ||ALREADY GRADED A+||NEWEST
VERSION
Quiz: How does blood flow through the heart?
Ans: Deoxygenated venous blood → Sup. Vena Cava → Right Atrium
→Tricuspid (AV) →Empties into R. Ventricle (& it contracts) → Blood ejected
through Pulmonary Valve → Pulmonary Artery → Lungs to be Oxygenated →
Pulmonary Veins → L. Atrium → Mitral (AV) → L. Ventricle (pumps with each
contraction) → Aortic Valve → Aorta → Body
Quiz: What is systole?
Ans: Contraction of the heart which pumps blood
Quiz: Diastole
Ans: Relaxation of the heart
Quiz: What produces S1 and S2 sound?
o
o
© 2025 TestTrackers
WhatsApp or call o Resources & Updates: [Testtrackers - Stuvia US]
o Your Success is Our Mission!
[+ 254707240657]
o For online exams and tutor expert, please
whatsapp me in the number given.
, Testtrackers
2
Ans: closing of the heart valves
Quiz: What produces S1?
Ans: The mitral and tricuspid valves which close in systole
Quiz: What produces S2 sound?
Ans: The closing of the aortic and pulmonic valves in diastole
Quiz: What is cardiac output?
Ans: the volume of blood pumped out by each ventricle per minute
Quiz: What is stroke volume?
Ans: amount of blood pumped out by each ventricle with contraction
Quiz: What determines cardiac output?
o
o
© 2025 TestTrackers
WhatsApp or call o Resources & Updates: [Testtrackers - Stuvia US]
o Your Success is Our Mission!
[+ 254707240657]
o For online exams and tutor expert, please
whatsapp me in the number given.
, Testtrackers
3
Ans: stroke volume and heart rate
Quiz: What is preload?
Ans: the degree of stretch on the heart before it contracts, related to
ventricular filling, end diastolic pressure, amount of blood entering the ventricle
during diastole
Quiz: What is afterload?
Ans: resistance left ventricle must overcome to circulate blood
Quiz: What is contractility?
Ans: Normal ability of muscle to contract at a given force for a given stretch. It
is independent of preload/afterload
Quiz: Will sustained tachycardia result in increased or decreased
stroke volume?
o
o
© 2025 TestTrackers
WhatsApp or call o Resources & Updates: [Testtrackers - Stuvia US]
o Your Success is Our Mission!
[+ 254707240657]
o For online exams and tutor expert, please
whatsapp me in the number given.
