Put the events of the Cardiac Cycle in order starting with depolarization of the
ID: 3512083 • Letter: P
Question
Put the events of the Cardiac Cycle in order starting with depolarization of the SA node to threshold. Some events may be missing. 1. depolarization of atrial cells 2. second heart sound 3. first heart sound 4. beginning of QRS complex of EKG 5. closure of AV valve 6. beginning of P wave of EKG 7. ventricular pressure becomes less than atrial pressure 8. beginning of T wave of EKG 9. opening of AV valve 10. ventricular pressure becomes less than aortic pressure 11. ventricular pressure rises above aortic pressure 12. opening of semilunar valve 13. ventricular pressure rises above atrial pressure 14. ejection of blood out of the ventricle 15. highest atrial pressure 16. ventricular filling begins A. 1, 15, 6, 4, 13, 5, 2, 11, 12, 14, 8, 10, 3, 7, 9, 16 B. 1, 6, 15, 4, 13, 5, 11, 12, 3, 14, 8, 10, 7, 9, 16, 2 C. 1, 15, 6, 16, 4, 13, 5, 3, 11, 12, 14, 8, 10, 2, 7, 9 D. 1, 6, 15, 9, 16, 4, 13, 5, 3, 11, 12, 14, 8, 10, 2, 7
Increased venous return causes __________ end diastolic volume which causes __________ stroke volume due to _____________. A) increased, decreased, Starling's Law B) decreased, decreased, decreased contractility C) increased, decreased, decreased contractility D) increased, increased, increased contractility E) increased, increased, Starling's Law
. Increased contractility of the heart is an increase in force of contraction of the heart that is __________ a change in end diastolic volume. A) not due to B) due to
Explanation / Answer
1. D 1, 6 , 15, 9, 16, 4, 13, 5, 3, 11, 12, 14, 8, 10, 2, 7
2. E increased, increased, starling's law
3. A) not due to.
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