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The sequence of opening (O) and closing (C) of heart –valves are:
As blood has to be pumped through AV valves and then through SL valves. So lasting closing will be of SL valve and after closing of SL valves AV valve will open- READ CARDIAC CYCLE- P- 284, 285
The results of ECG are known as
NCERT, P -285, ECG
The standard ECG is obtained by connecting the patient to the machine with how many leads?
NCERT, P -286, Para 1
If one wants to analyse the detailed cardiac activity, the multiple leads are attached to–
NCERT, P -286, Para 1
What does the QRS complex represent in ECG?
NCERT, P -286, Para 4
What does the T wave represents in ECG?
NCERT, P -286, Para 5
What does the depolarization of ventricles initiate?
NCERT, P -286, Para 4
By counting number of QRS complex, one may get which information?
NCERT, P -286.
The deviation from the characteristic ECG indicates a possible abnormality; this information can be utilized in which field of Biology?
NCERT, P -286, Para 6
Depolarisation and repolarisation actually initiate ___________ in different chambers of heart?
Depolarization will result in systole or contraction while repolarization will result in relaxation or diastole.
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