1.

Cardiac output A. Is normally expressed as the output of one ventricle in litres/minute.B. May not increase when heart rate rises. C. Usually rises when a person lies down. D. Rises in a hot environment. E. Does not increase in exercise following denervation of the heart.

Answer»

A. True The output from the left and right ventricle is the same. 

B. True It depends on what happens to stroke volume. 

C. True Lying down normally increases the filling pressure of the heart. 

D. True To meet the needs of increased metabolism and increased skin blood flow. 

E. False The output does increase due to changes in the filling pressure, level of circulating hormones, etc.



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