Examples of artificial pacemaker in the following topics:
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- A artificial pacemaker is a medical device that delivers electrical impulses to the heart muscles to regulate the beating of the heart.
- A pacemaker, or artificial pacemaker, so as not to be confused with the heart's natural pacemaker is an implantable medical device that uses electrical impulses, delivered by electrodes contacting the heart muscles, to regulate the beating of the heart.
- This chest x-ray shows an installed artificial pacemaker with wire routing used to contact the heart to regulate beating.
- This artificial pacemaker, manufactured by St.
- Identify the function of artificial pacemakers that are implanted in the heart
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- Examples of such instruments include scalpels, hypodermic needles, and artificial pacemakers .
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- Plutonium was a power source for Voyager spacecrafts launched in 1977 and is also used in artificial heart pacemakers.
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- Electric energy stimulating the heart occurs in the sinoatrial node, the heart's pacemaker, and is transmitted partially by Perkinje fibers.
- Because the sinoatrial node is responsible for the rest of the heart's electrical activity, it is sometimes called the primary pacemaker.
- If the AV node also fails, Purkinje fibers are capable of acting as the pacemaker.
- In short, they generate action potentials, but at a slower rate than sinoatrial node and other atrial ectopic pacemakers.
- Thus they serve as the last resort when other pacemakers fail.
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- Artificial immunity is a mean by which the body is given immunity to a disease by intentional exposure to small quantities of it.
- Artificially-acquired passive immunity is an immediate, but short-term immunization provided by the injection of antibodies, such as gamma globulin, that are not produced by the recipient's cells.
- Artificial active immunization is where the microbe, or parts of it, are injected into the person before they are able to take it in naturally.
- The first record of artificial immunity was in relation to a disease known as smallpox.
- Both natural and artificial immunity can be further subdivided, depending on the amount of time the protection lasts.
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- Passive immunization can be exogenously administered (artificial) or transferred from mother to fetus (natural).
- There are two types of passive immunity: artificial and natural .
- Artificial passive immunity is achieved by infusion of serum or plasma containing high concentrations of antibody.
- Both natural and artificial immunity can be further subdivided, depending on the amount of time the protection lasts.
- Describe how artificial and natural passive immunity function to provide antibody protection against microorganisms
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- The SA and AV nodes act as a pacemaker for the heart, determining the rate at which it beats, even without signals from the larger nervous system of the human body.
- Without autonomic nervous stimulation, the SA node will set the heart rate itself, acting as the primary pacemaker for the heart.
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- These palpitations have also been known to be caused by atrial/ventricular fibrillation, wire faults, and other technical or mechanical issues in cardiac pacemakers/defibrillators.
- The sinoatrial node is a single specialized location in the atrium which has a higher automaticity (a faster pacemaker) than the rest of the heart and, therefore, is usually responsible for setting the heart rate and initiating each heart beat.
- Arrhythmias with atrial origin include: Premature Atrial Contractions (PACs), Wandering Atrial Pacemaker, Atrial flutter, and Atrial fibrillation (Afib).
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- The strong magnetic fields and radio pulses can, however, affect metal implants (including cochlear implants and cardiac pacemakers).
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- They produce dental plaque and colonize catheters, prostheses, transcutaneous and orthopedic devices, contact lenses, and internal devices such as pacemakers.