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1. Dictionary

   pacemaker

   /ˈpeɪsˌmeɪkə/

   noun

   • 1. a person or animal who sets the pace at the beginning of a race, sometimes in order to help a runner break a record: "he acted as a pacemaker for Bannister when he broke the four-minute mile"
   • ▪ a person who sets standards of achievement for others: "unbeaten Rangers are the surprise pacemakers"
   • 2. a device for stimulating the heart muscle and regulating its contractions.
   • ▪ the part of the heart muscle (the sino-atrial node) which normally regulates contractions.
   • ▪ the part of an organ or of the body which controls rhythmic physiological activity: "the brain's circadian pacemaker which regulates our ‘biological clock’"

   Derivatives

   • 1. pacemaking adjective

   Scrabble Points: 19

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2. People also ask

   What is a cardiac pacemaker?

   • They make up the cardiac pacemaker, that is, the natural pacemaker of the heart. In most humans, the highest concentration of pacemaker cells is in the sinoatrial (SA) node, the natural and primary pacemaker, and the resultant rhythm is a sinus rhythm .

   Cardiac pacemaker - Wikipedia

   en.wikipedia.org/wiki/Cardiac_pacemaker

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   How does a pacemaker work?

   • To place a pacemaker, a doctor inserts one or more wires into a major vein under or near the collarbone. The doctor uses X-ray images to guide the wires to the heart. One end of each wire attaches to the proper area in the heart. The other end connects to the part of the pacemaker that delivers electrical pulses.

   Pacemaker - Mayo Clinic

   www.mayoclinic.org/tests-procedures/pacemaker/about/pac-20384689

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   What is an artificial pacemaker?

   • In humans, and sometimes in other animals, a mechanical device called an artificial pacemaker (or simply "pacemaker") may be used after damage to the body's intrinsic conduction system to produce these impulses synthetically. Schematic representation of the sinoatrial node and the atrioventricular bundle of His.

   Cardiac pacemaker - Wikipedia

   en.wikipedia.org/wiki/Cardiac_pacemaker

   See all results for this question

3. www.mayoclinic.org › tests-procedures › pacemakerPacemaker - Mayo Clinic

   www.mayoclinic.org › tests-procedures › pacemaker

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   Jul 8, 2023 · A pacemaker is a small, battery-powered device that prevents the heart from beating too slowly. You need surgery to get a pacemaker. The device is placed under the skin near the collarbone.

4. en.wikipedia.org › wiki › Cardiac_pacemakerCardiac pacemaker - Wikipedia

   en.wikipedia.org › wiki › Cardiac_pacemaker

   • Cached

   An artificial cardiac pacemaker (or artificial pacemaker, so as not to be confused with the natural cardiac pacemaker) or just pacemaker is an implanted medical device that generates electrical impulses delivered by electrodes to the chambers of the heart either the upper atria, or lower ventricles to cause the targeted chambers to contract and ...

5. www.healthline.com › health › heart-pacemakerPacemaker: Types, Procedure, Precautions, and More - Healthline

   www.healthline.com › health › heart-pacemaker

   • Cached

   Nov 25, 2021 · A pacemaker is an electric device that helps regulate your heartbeat and treat arrhythmias or heart failure. Learn about the different types of pacemakers, how they’re implanted, and what precautions you need to take.

6. www.heart.org › pacemakerPacemaker | American Heart Association

   www.heart.org › pacemaker

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   Nov 18, 2022 · A pacemaker is a device that helps the heart beat in a regular rhythm. Learn about the different types of pacemakers, how they work and why you might need one.

7. www.britannica.com › technology › pacemaker-artificialPacemaker | Definition, Types, History, & Facts | Britannica

   www.britannica.com › technology › pacemaker-artificial

   • Cached

   Jun 4, 2024 · A pacemaker is an artificial device that regulates the heartbeat in patients with certain heart diseases. Learn about the types, history, and functions of pacemakers, as well as how they communicate wirelessly with doctors and home monitoring systems.

   • Author: The Editors of Encyclopaedia Britannica

8. www.nhlbi.nih.gov › health › pacemakersPacemakers - What Are Pacemakers? | NHLBI, NIH

   www.nhlbi.nih.gov › health › pacemakers

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   Mar 24, 2022 · A pacemaker is a device that sends electrical pulses to help your heart beat normally. Learn about the types, uses, and benefits of pacemakers from the National Heart, Lung, and Blood Institute.

9. www.heart.org › what-is-a-pacemakerWhat Is a Pacemaker? - American Heart Association

   www.heart.org › what-is-a-pacemaker

   A pacemaker is a small device that sends electrical impulses to your heart to help control your heartbeat so your body gets blood and oxygen. Traditional pacemakers have three parts: • Generator. • Wires (leads) • Sensors. Some newer kinds are wireless. A traditional pacemaker is implanted under the skin, just under the collarbone.