CARDIAC IMPULSE Meaning and
Definition
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Cardiac impulse refers to the electrical signal generated within the heart that initiates and coordinates the contraction of its muscles, resulting in the rhythmic beating of the heart. It is also known as the heart's electrical impulse or the heart's electrical activity.
The generation and propagation of the cardiac impulse are essential for maintaining the regular rhythm and proper functioning of the heart. It is primarily controlled by the sinoatrial (SA) node, a small cluster of specialized cells located in the right atrium of the heart. The SA node acts as the heart's natural pacemaker, producing electrical impulses at regular intervals.
From the SA node, the cardiac impulse spreads to the atrioventricular (AV) node, located in the middle of the heart between the atria and the ventricles. The AV node acts as a delay to allow the atria to contract and empty their blood into the ventricles before the ventricles contract. From the AV node, the impulse is conducted through specialized conducting fibers called the bundle of His, and then further divides into smaller branches known as the Purkinje fibers, which stimulate the ventricular muscles to contract simultaneously, promoting effective pumping of blood throughout the body.
Monitoring and analyzing the cardiac impulse provide valuable insights into the heart's functioning, helping in diagnosing and managing various heart conditions such as arrhythmias, conduction disorders, and heart attacks. Electrophysiological studies, electrocardiograms (ECGs), and other diagnostic tools are commonly used to assess the cardiac impulse and identify any abnormalities that may require medical intervention.
Common Misspellings for CARDIAC IMPULSE
- xardiac impulse
- vardiac impulse
- fardiac impulse
- dardiac impulse
- czrdiac impulse
- csrdiac impulse
- cwrdiac impulse
- cqrdiac impulse
- caediac impulse
- caddiac impulse
- cafdiac impulse
- catdiac impulse
- ca5diac impulse
- ca4diac impulse
- carsiac impulse
- carxiac impulse
- carciac impulse
- carfiac impulse
- carriac impulse
- careiac impulse
Etymology of CARDIAC IMPULSE
The word "cardiac" is derived from the Ancient Greek word "kardia", meaning "heart". It refers to anything related to the heart. The word "impulse" comes from the Latin word "impulsus", which means "a push or thrust". When combined, "cardiac impulse" refers to the electrical activity that triggers the contraction of the heart muscle, resulting in the heartbeat.
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