sentence: Atrial diastole happens then too.
sentences_before: Then ventricular systole happens. This is called the 'QRS' or QRS-complex. It is called a complex because there are three different waves in it. Then the ECG shows ventricular diastole. This is called the 'T-wave'.
sentences_after: But it is not seen separate from ventricular diastole.
concept_name: atrial diastole
headings: Heart ECG
categories: Basic English 850 words Anatomy of the cardiovascular system