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B.Infuse a balance electrolyte solution C.Give furosemide D.Give a bronchoconstricto E.Infuse whole blood 11.An of the following would tend to increase in which increase lymph flow? A.Hydraulic conductivity of the capillary wall B.Plasma colloid osmotic pressure D.Arteriolar resistance E.Aand C E mainly by which of the following? A.Sympathetic nerves B.Angiotensin II C.Vasopressin D.Metabolic needs E.Capillary osmotic pressure D 13.If the S-A node discharges at 0.00 seconds,when will the action potential normally arrive at the epicardial surface at the base of the left ventricle? A.0.22se B018e 0.16 sec D.0.12sec E.0.09 sec 14.Which of the following? repinephrine】 Increased sodium permeability C.Increased calcium permeability D.Increased potassium permeability E.Decreased acetylcholine levels 15.Which of the following are caused by acetylchoine A.Hyperpolarization of the S-A node B.Depolarization of the A-V node C.Decreased permeability of the S-A node to potassium ions D.Increased heart Increased permeability of the cardiac muscle tocalcium ion 16.Which is the membrane potential (threshold level)at which the S-A node discharges?B. Infuse a balance electrolyte solution C. Give furosemide D. Give a bronchoconstrictor E. Infuse whole blood C 11. An of the following would tend to increase in which increase lymph flow? A. Hydraulic conductivity of the capillary wall B. Plasma colloid osmotic pressure C. Capillary hydrostatic pressure D. Arteriolar resistance E. A and C E 12. Under normal physiological conditions, blood flow to the skeletal muscles is determined mainly by which of the following? A. Sympathetic nerves B. Angiotensin II C. Vasopressin D. Metabolic needs E. Capillary osmotic pressure D 13. If the S-A node discharges at 0.00 seconds, when will the action potential normally arrive at the epicardial surface at the base of the left ventricle? A. 0.22sec B. 0.18 sec C. 0.16 sec D. 0.12sec E. 0.09 sec A 14. Which of the following conditions at the S-A node will cause heart rate to decrease? A. Increased norepinephrine levels B. Increased sodium permeability C. Increased calcium permeability D. Increased potassium permeability E. Decreased acetylcholine levels D 15. Which of the following are caused by acetylcholine? A. Hyperpolarization of the S-A node B. Depolarization of the A-V node C. Decreased permeability of the S-A node to potassium ions D. Increased heart rate E. Increased permeability of the cardiac muscle to calcium ions A 16. Which is the membrane potential (threshold level) at which the S-A node discharges?
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