the time taken for an impulse to travel from the S-A to the A-V node is evidenced in the ____ a) QRS complex b) S-T interval c) P-Q interval d) QRS-T interval
Answers
Answer:
QRS complex i guess because they are the ones tht show ventricular contraction which will happen due to impulse generated by SA node
Answer:
Correct option - (c) P-Q interval.
The P-Q interval shows the electrical signal traveling from the S-A node to the A-V.
Explanation:
The heart rhythm is observed to find out any non-consistency or disease symptoms. The heart rhythm and electrical events can be observed through a simple technology known as an electrocardiogram (ECG). An ECG monitors the regularity of blood flow by the electrical impulses passing through the heart.
The electrical activity in the heart initiates from the SA node of the right atrium. It then travels through the right and left atria so that the atria contracts and pump blood into the ventricles. This is shown as the P wave in ECG.
The electrical signal then passes to the AV node and then to the ventricles. Here the signal slows down to allow the ventricles to fill up the blood. This slow movement occurs between the P and Q waves in the ECG.
Thus, the electrical signal traveling from the S-A node to the A-V node is shown within the P-Q interval.
