Right bundle branch

Right bundle branch Bundle of His AV node Question 26 An individual consumes multiple gallons of water in a water chugging contest. This person’s venous return foreload) to the heart is increated Which of the following best describes the effect this has on cardiovascular function? Stroke volume decreases End diastolic volume decreases Stroke volume increases Cardiac output decreases

Question 27 On an electrocardiogram, the P wave corresponds with which of the following electrical events?$$2\mathrm{pts}$$Repolarization of the ventricles The 1st heart sound Depolarization of the atria Atrial contraction