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pacemaker    音标拼音: [p'esm,ekɚ]
n. 定步速者,带步人;标兵;起搏器;起搏点

定步速者,带步人;标兵;起搏器;起搏点

pacemaker
n 1: a leading instance in its field; "the new policy will be a
pacesetter in community relations" [synonym: {pacesetter},
{pacemaker}]
2: a specialized bit of heart tissue that controls the heartbeat
[synonym: {pacemaker}, {cardiac pacemaker}, {sinoatrial node},
{SA node}]
3: an implanted electronic device that takes over the function
of the natural cardiac pacemaker [synonym: {pacemaker},
{artificial pacemaker}]
4: a horse used to set the pace in racing [synonym: {pacer},
{pacemaker}, {pacesetter}]

pacemaker \pacemaker\ n. (Physiol. & Anat.)
1. a specialized bit of heart tissue that controls the
heartbeat.

Syn: cardiac pacemaker, sinoatrial node.
[WordNet 1.5]

2. An implanted electronic device that takes over the
function of the natural cardiac pacemaker[1]; -- used to
assist people whose heartbeat is irregular.

Syn: artificial pacemaker.
[WordNet 1.5]

3. A horse used to set the pace in racing.

Syn: pacer, pacesetter.
[WordNet 1.5]

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英文字典中文字典相关资料:


  • Pacemaker - Mayo Clinic
    A pacemaker is a device used to control an irregular heart rhythm A pacemaker has flexible wires called leads The wires are placed in one or more chambers of the heart They deliver electrical signals to fix the heart rate Some newer pacemakers don't need wires
  • Pacemaker Guide: Implantation, Surgery, and Living With It
    A pacemaker is a small device that helps regulate heart rate and rhythm by sending electrical impulses to the heart muscle Learn how it works
  • Pacemaker - American Heart Association
    A pacemaker is a small, battery-operated device that helps the heart beat in a regular rhythm Traditional pacemakers have three parts: a generator, wires (leads) and sensors (electrodes)
  • Who Should Get a Pacemaker and What to Know About Living With One
    A pacemaker is designed to prevent the heart from beating too slowly For example, the heart may not be able to generate each electrical impulse, it may temporarily stop, or the nerve that carries the electricity from the top of the heart to the bottom chambers may wear out
  • Pacemaker - Wikipedia
    A pacemaker, also known as an artificial cardiac pacemaker, is an implanted medical device that generates electrical pulses delivered by electrodes to one or more of the chambers of the heart
  • Pacemaker Insertion - Johns Hopkins Medicine
    What is a pacemaker? A pacemaker is composed of three parts: a pulse generator, one or more leads, and an electrode on each lead A pacemaker signals the heart to beat when the heartbeat is too slow or irregular
  • How Does a Pacemaker Work? - Verywell Health
    Once implanted, a pacemaker checks your heart's electrical activity If your heart rate falls too low, the device sends a small electrical signal to the heart muscle, causing it to contract
  • Pacemaker - Harvard Health
    What is a pacemaker? A standard transvenous pacemaker is an implanted device that regulates your heartbeat electronically It monitors your heart's rhythm and, when necessary, it generates an electric impulse that triggers a heartbeat Your pacemaker is programmed to meet the needs of your heart
  • What Is a Pacemaker? | Medical Devices and Equipment - JAMA Network
    A pacemaker is a small, implantable electronic device that helps regulate the heartbeat The heart’s rhythm is controlled by a natural pacemaker called the sinus node, which sends electrical signals to the lower chambers of the heart through a pathway called the cardiac conduction system Damage to this system can result in slow or unreliable heartbeats, which can occur gradually with age or
  • Pacemaker: Types, Surgery What It Does - Cleveland Clinic
    A pacemaker is a small device a healthcare provider can place in your upper body, usually during a surgery, to send impulses to your heart The electronic device can manage abnormal heart rhythms





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