Question

O A nurse is evaluating stroke volume, which factor s affect Stroke volume? (select all that apply) a. Preload b, after load c. ejection fraction d. contractility e, peripheral vascular Resistance Caroreceptors are locatiad in the : a. renal artery b. Carotid ardery. C. circle ofF willis d. Superior vena cava (18)what term is used to identify the period that follows de polarization of the myocardium and represents a period during which no new cardiac potential can a. absolute refrac tory b. Hyper polari zation c. Resting d. Thre shold be propagaed

Answer 1

ANSWER.

16) Factors affect stroke volume.

            a) Preload.(Stretching before myocardial contraction)

             b) Afterload.(Pressure heart must overcome during cardiac systole

                                     to eject blood).

             d) Contractility.

17) b) Baroreceptors are located in the carotid arteries.

18) a) Absolute refractory is used to identify the period that follows

          depolarization of the myocardium and represent a period during

          which no new action potential can be propagated.