On the ECG, the P wave represents atrial _____ and the QRS ...

[karlynnae]

On the ECG, the P wave represents atrial _____ and the QRS complex represents ventricular _____.
 
  a. depolarization; depolarization
  b. repolarization; repolarization
  c. repolarization; depolarization
  d. depolarization; repolarization

Question 2

When the cardiac muscle cell is stimulated, the cell is said to _____.
 
  a. polarize
  b. recover
  c. depolarize
  d. repolarize

[stanleka1]

Answer to Question 1

A
On the ECG, the P wave represents atrial depolarization and the QRS complex represents ventricular depolarization.

Answer to Question 2

C
The movement of charged particles across a cell membrane causing the inside of the cell to become positive is called depolarization. Depolarization must take place before the heart can mechanically contract and pump blood.

[karlynnae]

Thank you

[stanleka1]

No problemo