Question
Biology Question on body fluids and circulation
The T-wave in an ECG represents
A
Depolarisation of ventricles
B
Electrical excitation of atria
C
Beginning of systole
D
Return of the ventricles from excited state
Answer
Return of the ventricles from excited state
Explanation
Solution
The T-wave in an ECG represents the return of the ventricles from the excited to normal state (repolarisation). The end of the T-wave marks the end of systole.