Dominant or primary pacemaker of the heart.

What does P represent on the diagram?  Wk. 5 Quiz Blank Label Heart ABCDE .pdf 

Atrial relaxation is also known as systole.

What does N represent on the diagram?  Wk. 5 Quiz Blank Label Heart ABCDE .pdf 

What does F represent on the diagram?  Wk. 5 Quiz Blank Label Heart ABCDE .pdf 

What does H represent on the diagram?  Wk. 5 Quiz Blank Label Heart ABCDE .pdf 

What is captured on an ECG?

The blood from the right ventricle flows to the?

Two chemicals are influenced by the sympathetic system. Choose all that apply.

What does O represent on the diagram?  Wk. 5 Quiz Blank Label Heart ABCDE .pdf