Structure
A recording of the hearts electrical activity is referred to as a(n)__________.
What is electrocardiogram or EKG.
The protective " sac" around the heart that protects the heart is called the ______.
What is Pericardium.
The EKG wave that results from contraction of the atria is the _________.
What is the P wave?
The vessel that carries oxygenated blood to the body is called the ___________.
What is Aorta.