Question 2 of 14
(demo test)

Product Demo for Part I Questions

Passage of the electrical signal from the structure of the heart labeled "1" to the structure labeled "2" corresponds to what part of the electrocardiogram (EKG)?

Heads up! You can use keyboard for test navigation: press for Next, for Previous, M for Mark/Unmark, P for Pause, R for Review, A,B,C,... or 1,2,3,... to select answer.