Q. Which of the following sentences is correct? I. ECG is of a great clinical significance II. Electrocardiograph is the recording of electrical changes during the cardiac cycle III. To obtain a standard ECG, a patient is connected to the machine with 3 electrical electrodes (one to each wrist and to the left ankle) IV. Normal activities of the heart are regulated intrinsically V. Electrocardiogram is the electrical activity of heart The option with correct statements is
A) I, II, III and IV
B) I, III, IV and V
C) II, III, IV and V
D) I, II, IV and V
Explanation
Electrocardiograph is not the recording of electrical changes during the cardiac cycle. Rather, it is the graph of electrical activity of the heart
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.