What do p waves represent?
atrial depolarisation
What does the QRS complex represent?
ventricular depolarisation
What does the T wave represent?
ventricular repolarisation
Where does the PR interval begin and end?
begins at the start of the p wave
ends at the beginning of the q wave
What does the PR interval represent?
time taken for electrical activity to move between the atria and the ventricles
Where does the ST segment start and end?
starts at the end of the S wave
ends at the beginning of the T wave
Where does the QT interval start and end?
starts at the start of the QRS complex
ends at the end of the T wave