ECG Curve

Q.

What is ultrasonography?

Q. The diagram given here is the standard ECG of a normal person. The P-wave represents the

1. beginning of the systole
2. Contraction of both the atria
3. end of systole
4. initiation of the ventricular contraction

Q.

Why do many people feel vibration in body duringurination?

Q. Burst the bubbles that indicate different components of conducting tissues.

1. Sieve tubes
2. Companion cells
3. Tracheids
4. Vessels
5. Fibres
6. Sieve cells
7. Collenchyma
8. Meristem

Q.

Which of the following is false about ECG?

1. P wave $\to$ artial depolarisation

2. QRS complex $\to$ ventricular depolarisation

3. T wave $\to$ ventricular repolarisation

4. ST depression indicates infarction

Q. The QRS complex in ECG represents

1. Depolarisation of ventricles
2. Depolarisation of atria
3. Repolarisation
4. Both a and b

Q. The diagram given here is the standard ECG of a normal person. The P-wave represents the

1. initiation of the ventricular contraction
2. end of systole
3. Contraction of both the atria
4. beginning of the systole

Q.

Which of these defects is not usually detected by ECG?

1. Arrhythmia

2. Myocardial infarction

3. Heart block

4. Valvular defects

Q. In a standard ECG which one of the following alphabets is the correct representation of the respective activity of the human heart?

1. S - Start of systole
2. T - end of diastole
3. P - depolarization of the atria
4. R- repolarization of ventricles

Q. End of T- wave represents the end of ventricular systole , end of ventricular diastole or start of ventricular diastole?

Q. Select the antonym for the following word from the options given below:

1. Peace
2. Effort
3. Remit
4. Strain