22. Ventricular Contractility increases in response to circulating Epinephrine. What factor is responsible for this increase in the force of the

22. Ventricular Contractility increases in response to circulating Epinephrine. What factor is responsible for this increase in the force of the contraction?

A. the Na+ current (depol.)

B. the Ca++ current which causes the plateau (trigger Ca++)

C. the K+ current

D. a decreased Central Venous Pressure

25. Blood Volume affects blood pressure because it directly increases:

A. Total Peripheral Resistance

B. Stroke Volume

C. End Systolic Volume

D. Central Venous Pressure

32. Increasing Vascular Resistance (TPR) increases Diastolic Blood Pressure.

A. true B. false