Nous étudions notre rythme cardiaque - électrocardiographie

Numéro d´article: P1332760



Principle

The heart is a hollow, muscular organ that comprises several secondary muscles. These secondary muscles contract and relax successively, thus pumping the blood through the heart. These muscle activities can be measured electrically as a whole at the surface of the skin with the aid of a so-called electrocardiogram (ECG). The same pattern repeats from heartbeat to heartbeat. A heartbeat is the regular sequence of electric excitations (action potentials). You can discern (record) the different partial activities of the cardiac muscle that follow each other with an electrocardiogram. This is why the ECG is also referred to as a "heart curve". A doctor can identify various cardiac disorders by looking at the specific ECG pattern of the heart that is recorded with an ECG machine which is licensed for diagnostic purposes.

Benefits

  • No danger due to electrical energy thanks to wireless operation
  • Data acquisition with tablets possible
  • Outdoors and site-independent measurements possible in tablet mode
  • Wireless measurement mode allows for use in sports medicine
  • Simple operation of the app, therefore appropriate for all education levels
  • Long-term measurement possible, i.e. for fitness tests

Tasks

  • Record an electrocardiogram of your own heartbeat at rest and determine the different phases of cardiac activity.
  • Some people need a pacemaker. Compare the ECG of a "normal" heart contraction with the ECG of a heart contraction that was caused by a pacemaker.

What you can learn about

  • Electrocardiogram according to Einthoven II
  • Heart rate
  • Quiet and strained heart
  • ECG segments
  • Atria and ventricles
  • AV nodes

 


Liste du matériel (extrait) Articles Montant
Cobra4 Wireless/USB-Link, avec câble USB 12601-10 1
Cobra4 capteur électrophysiologie: ECG, EMG, EOG 12673-00 1
Fils pour électrophysiologie, avec code couleur, 3 pièces 12673-01 1
Electrodes jetables pour ECG, 100 pcs. 12559-01 1
Pinces crocodiles pour électrodes jetables, 3 pièces 12673-02 1

Littérature pour cet article comme suit:

Title Produit Langue
Handbuch Schüler- und Lehrerversuche Cobra4, Physik, Chemie, Biologie, Alltagsphänomene, TESS und DEMO 01330-01 DEU
TESS and Demo advanced Manual Cobra4 Physics, Chemistry, Biology, Everyday Science 01330-02 ENG
Handbuch Schülerversuche Cobra4 Elektrophysiologie: EKG, EMG, EOG, TESS advanced Biologie 12673-11
TESS advanced Biology manual Cobra4 Electrophysiology: ECG, EMG, EOG 12673-12 ENG
Schülerversuche Elektrophysiologie für Tablets und PCs, Gerätesatz TESS advanced Biologie 15674-88

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Numéro d´article: P1332760

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