10. which of the following statements is true? a. the longer the vessel, the lower the resistance and the greater the flow. b. as blood volume decreases, blood pressure and blood flow also decrease. c. increased viscosity increases blood flow.



Answer :

It is accurate to say that blood pressure and blood flow also decrease when blood volume does. The remaining claims are untrue.

How does the heart's blood flow?

When the heart slows down in between two heartbeats, blood circulation begins: The bottom two chambers of the heart, the ventricles, expand as the blood flows from the two atria, the upper two chambers.

The definition of pulmonary circulation

The fresh oxygen we breathe in enters the bloodstream through the pulmonary circulation. Carbon dioxide is also expelled from the circulation at the same moment. When the heart slows down in between beats, blood circulation begins as blood flows from both atria, the upper two chambers of the heart, into the ventricles, which then enlarge.

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