Question

A pacemaker is meant for
A. Transporting liver
B. Transplanting heart
C. Initiation of heartbeat
D. Regulation of blood flow

Answer 1

Hint: The word pace means rate of movement especially in walking ,stepping .Pace maker is a device used to increase the rate of movement.

Complete answer: Pace maker is a system that sends electrical impulses to the heart that can set heart rhythm. Pacemakers can be natural in the heart or an electrical device .The natural pacemaker of the heart is one of the major elements in the cardiac conduction system, that is sinus node, which controls the heart rate. This system generates electrical impulses and conducts them throughout the heart muscle .The sinoatrial node or sinus node is a small mass of specialized cells in the top of right atrium .The heart beat may be too fast ,or too slow or irregular when the natural pacemaker is defective. This condition is known as arrhythmia, artificial pacemakers are used in these patients with help of surgery.
Artificial pacemakers are used in patients with defective heart beats. Artificial pacemaker is a small device which is battery operated that helps the heart to beat in a regular rhythm .This device is placed in the chest or abdomen by making a small incision or cut. This device consists of two parts ,the generator which consists of battery and the leads or wires. The wires connect the heart to the generator and carry the electrical messages to heart.
So, the correct answer is “Option C”.

Note: Artificial pacemakers are placed permanently in some patients and temporarily in some .Some risks after implantation of pacemaker are infection, allergic reaction, damage to the blood vessels or nerves