Where do cardiac impulses originate in the heart?
singleAnswer singleAnswer
SA node sinoatrial node sinus node
SA node sinoatrial node
Electrical conduction system of the heart
cardiac impulses originate in the heart cardiac impulse in the heart
Electrical conduction system of the heart Arrhythmia Ectopic beat Parasternal heave Premature junctional contraction Cardiac pacemaker Atrioventricular node Heart block Junctional rhythm Atrial fibrillation
The electrical conduction system of the <b>heart</b> transmits signals generated usually 
by the ... Embryologic evidence of generation of the <b>cardiac</b> conduction system ... 
An <b>impulse</b> (action potential) that <b>originates</b> from the SA node at a relative rate&nbsp;... Arrhythmia, also known as <b>cardiac</b> arrhythmia or <b>heart</b> arrhythmia, is a group of 
conditions in ... Each <b>heart</b> beat <b>originates</b> as an electrical <b>impulse</b> from a small 
area of tissue in the right atrium of the <b>heart</b> called the sinus node or sinoatrial 
node&nbsp;... Ectopic beat is a disturbance of the <b>cardiac</b> rhythm frequently related to the 
electrical conduction system of the <b>heart</b>, in which beats arise from fibers or group 
of fibers outside the region in the <b>heart</b> muscle ordinarily responsible for <b>impulse</b> 
formation (i.e., ... <b>Heart</b> arrhythmia § <b>Origin</b> of <b>impulse</b> &middot; Ectopia (disambiguation) &middot; 
Junctional&nbsp;... A parasternal heave (or lift) is a precordial <b>impulse</b> that may be felt (palpated) in 
patients with <b>cardiac</b> or respiratory disease. Precordial <b>impulses</b> are visible or 
palpable pulsations of the chest wall, which <b>originate</b> on the <b>heart</b> or the great 
vessels. Premature junctional contractions (PJCs), also called atrioventricular junctional 
premature complexes or junctional extrasystole, are premature <b>cardiac</b> electrical 
<b>impulses originating</b> from the atrioventricular node of the <b>heart</b> or &quot;junction&quot;. The contraction of <b>cardiac</b> muscle (<b>heart</b> muscle) in all animals is initiated by 
electrical <b>impulses</b> ... The bundle, represented in red, <b>originates</b> near the orifice 
of the coronary sinus, undergoes slight enlargement to form the AV node. The AV
&nbsp;... The atrioventricular node or AV node is a part of the electrical conduction system 
of the <b>heart</b> ... The <b>origin</b> of this artery is most commonly (80-90% of <b>hearts</b>) a 
branch of the ... The <b>cardiac</b> conduction system (and AV node part of it) 
coordinates myocyte ... The atrioventricular node delays <b>impulses</b> by 
approximately 0.09s. <b>Heart</b> block (HB) is a disorder in the <b>heart</b>&#39;s rhythm due to a fault in the natural 
pacemaker. ... types of shock, different types of abnormal <b>heart</b> rhythms (
arrhythmias), <b>cardiac</b> arrest, or respiratory arrest. ... In an SA block, the electrical 
<b>impulse</b> is delayed or blocked on the way to the atria, thus delaying atrial 
depolarization. Junctional rhythm describes an abnormal <b>heart</b> rhythm resulting from <b>impulses</b> 
coming from a ... The electrical activity of sinus rhythm <b>originates</b> in the sinoatrial 
node and depolarizes the atria. Current then ... Categories: <b>Cardiac</b> arrhythmia&nbsp;... Atrial fibrillation (AF or A-fib) is an abnormal <b>heart</b> rhythm (arrhythmia) 
characterized by rapid ... For this reason, when determining <b>heart</b> rate in AF, 
direct <b>cardiac</b> auscultation is recommended. ... atrium of the <b>heart</b> are 
overwhelmed by disorganized electrical <b>impulses</b> usually <b>originating</b> in the roots 
of the pulmonary veins.
Apex beat Electrical conduction system of the heart Cardiac pacemaker Cardiac physiology Atrioventricular node Parasternal heave Arrhythmia Purkinje fibers Sinoatrial node Ectopic beat
The apex beat (lat. ictus cordis), also called the apical impulse, is the pulse felt at 
the point of maximum impulse (PMI), which is the point on the precordium farthest 
outwards (laterally) and downwards (inferiorly) from the sternum at which the 
<b>cardiac impulse</b> can ... The <b>cardiac impulse</b> is the vibration resulting from the 
<b>heart</b> rotating, moving&nbsp;... The electrical conduction system of the <b>heart</b> transmits signals generated usually 
by the ... Embryologic evidence of generation of the <b>cardiac</b> conduction system ... 
If SA nodal <b>impulses</b> occur at a rate less than 60bpm, the <b>heart</b> rhythm is known&nbsp;... The contraction of <b>cardiac</b> muscle (<b>heart</b> muscle) in all animals is initiated by 
electrical <b>impulses</b> known as action potentials. The rate at which these <b>impulses</b> 
fire&nbsp;... <b>Cardiac</b> physiology or <b>heart</b> function is the study of healthy, unimpaired function 
of the <b>heart</b>: ... to initiate a <b>cardiac</b> action potential at a fixed rate – spreading the 
<b>impulse</b> rapidly from cell to cell to trigger the contraction of the entire <b>heart</b>. The atrioventricular node or AV node is a part of the electrical conduction system 
of the <b>heart</b> ... The <b>cardiac</b> conduction system (and AV node part of it) coordinates 
myocyte ... The atrioventricular node delays <b>impulses</b> by approximately 0.09s. A parasternal heave (or lift) is a precordial <b>impulse</b> that may be felt (palpated) in 
patients with <b>cardiac</b> or respiratory disease. Precordial <b>impulses</b> are visible or 
palpable pulsations of the chest wall, which originate on the <b>heart</b> or the great 
vessels. Arrhythmia, also known as <b>cardiac</b> arrhythmia or <b>heart</b> arrhythmia, is a group of 
conditions in ... Each <b>heart</b> beat originates as an electrical <b>impulse</b> from a small 
area of tissue in the right atrium of the <b>heart</b> called the sinus node or sinoatrial 
node&nbsp;... The Purkinje fibers are located in the inner ventricular walls of the <b>heart</b>, just 
beneath the ... The Purkinje fibers are further specialized to rapidly conduct 
<b>impulses</b> (numerous fast voltage-gated sodium ... of relatively fewer myofibrils 
than other <b>cardiac</b> cells and the presence of glycogen around the nucleus causes 
Purkinje&nbsp;... The sinoatrial node is a group of cells located in the wall of the right atrium of the 
<b>heart</b>. These cells have the ability to spontaneously produce an electrical <b>impulse</b> 
... Action potentials pass from one <b>cardiac</b> cell to the next through pores known as 
gap junctions. These gap junctions are made of proteins called connexins. Ectopic beat is a disturbance of the <b>cardiac</b> rhythm frequently related to the 
electrical conduction system of the <b>heart</b>, in which beats arise from fibers or group 
of fibers outside the region in the <b>heart</b> muscle ordinarily responsible for <b>impulse</b> 
formation (i.e.,&nbsp;...
sinoatrial node
Electrical conduction system of the heart