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QUESTION

The "pump" or "pressure-head" for the systemic circulation is the: right atrium B. right ventricle C. left atrium D. left ventricle 8.

2. The "pump" or "pressure-head" for the systemic circulation is the:

A. right atrium

B. right ventricle

C. left atrium

D. left ventricle

8. The volume of blood ejected by the heart per minute is termed:

A. stroke volume

B. cardiac output

C. end diastolic volume

D. end systolic volume

9. Right and Left Ventricular Pressures are the identical during:

A. the period of ejection

B. the period of filling

C. systole

12. During exercise, venous return is enhanced by:

A. the operation of carotid arterial and femoral arterial valves.

B. the operation of the respiratory muscle/ventilation pump.

C. skeletal muscle pump operation

D. Answers B and C are correct.

14. The action potential in excitable cells is 'activated' when the cell membrane reaches the membrane voltage referred to as:

A. the graded potential

B. the peak

C. threshold

D. the regressive augmentation

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