During the cardiac cycle,
A) the P wave of the ECG occurs between the first and second heart sounds.
B) the QRS complex of the ECG precedes the increase in ventricular pressure.
C) the second heart sound occurs during atrial systole.
D) the second heart sound coincides with the QRS complex of the ECG.
E) both QRS complex of the ECG precedes the increase in ventricular pressure and second heart sound coincides with the QRS complex of the ECG.
Answer: B
You might also like to view...
Answer the following statements true (T) or false (F)
1. New blade designs have resulted in extremely low values for the kinetic friction coefficients of ice hockey skates on ice. 2. Elite sprinters display greater impulse against the starting blocks than sub-elite sprinters. 3. Harder running surfaces result in greater ground reaction forces. 4. A motionless object sitting on a motionless surface, with no horizontal force application, has no friction. 5. From a mechanical perspective, it is easier to pull an object than to push it.
Desmosomes are the weakest cell-to-cell connections
a. True b. False Indicate whether the statement is true or false
Control of blood flow to skeletal muscles during exercise is mainly under ________ control.
A. hormonal B. intrinsic metabolic C. intrinsic myogenic D. extrinsic metabolic
A ________ is a cordlike organ composed of numerous ________.
A. nerve; axons B. nerve; neurosomas C. nerve fiber; axons D. nerve fiber; neurosomas E. nerve fiber; nerves