题目内容

The factors not related to the stroke volume is []

A. End-diastolic filling volume
B. Arterial blood pressure
C. Myocardial contractility
D. Heart rate
E. Types of transmembrane ion currents in ventricular myocytes

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The autoregulation of heart pump function is directly related to []

A. End-systolic volume of ventricle
B. End-diastolic volume of ventricle
C. Mean arterial pressure
D. Heart reserve
E. Cardiac output

The main form of CO2 transport in the blood is []

A. Physical dissolution
B. Formation of bicarbonate
C. Formation of carbamoyl hemoglobin
D. Binding to plasma proteins
E. Bicarbonate

The correct statement about the CO2 dissociation curve is []

A. the relationship between the content of CO2 bound to Hb and PCO2
B. It is S-shaped
C. There is a saturation point
D. Changes in PO2 can shift it
E. Not linear relationship

The following are not directly related to gas exchange in lung []

A. V/Q ratio
B. Respiratory membrane area
C. Respiratory membrane thickness
D. Gas partial pressure
E. Airway caliber

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