Q. An artificial pacemaker is implanted subcutaneously and connected to the heart in patients
A) Having 90% blockage of the three main coronary arteries
B) Having a very high blood pressure
C) With irregularity in the heart rhythm
D) Suffering from arteriosclerosis
Explanation
SA-node (sinu-atrial node) heart beats and thereby sets the basic pace of the heart beat, hence, its name pacemaker. Pacemaker is a bundle of modified cardiac muscles. An artificial pacemaker is implanted subcutane- ously and connected to heart in patients with irregularity in the heart rhythm.
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.