Overview of the Cardiac Conduction System The cardiac conduction system is a network of specialized cells responsible for the initiation and co-ordination of the heartbeat. Relative to the myocytes responsible for regulating cardiac contraction in a normal heart (~1 × 109), the cells that make ...
Summary This chapter contains section titled: The Heart Within the Body Relationships of Cardiac Chambers The Atrial Chambers The Atrioventricular Junctions The Ventricles The Coronary Arteries The Coronary Veins The Cardiac Conduction System Fat Pads and Innervation Conclusions Acknowledgment Referencesdoi:...
Cardiac Tamponade Fluid accumulation compressing the heart, leading to a medical emergency with associated conditions and treatment options Sinoatrial node (SA node) Pacemaker of the heart's electrical activity AV node Atrioventricular node in the heart's conduction system ...
Cellular and Molecular Pathobiology of the Cardiac Conduction System Thomas J.HundPhD, ...Peter J.MohlerPhD, inCellular and Molecular Pathobiology of Cardiovascular Disease, 2014 Atrioventricular Node Action Potential and Electrical Components Similar toSANcells,AV nodecells demonstrate automaticity, albeit ...
ECGAn electrocardiogram (ECG) is a graphic representation of the electrical activity of the heart plotted against time. Adhesive electrodes are affixed to the skin surface allowing measurement of cardiac impulses from many angles. The ECG provides 3-dimensional information about the conduction system of...
Beta 1 receptors exert their effect mostly on the heart, causing an increase in cardiac output, increased contractility and increased cardiac conduction, leading to an increase in heart rate. There is also stimulation of the salivary glands. ...
In these flashcards, we will review the purpose and components of the cardiovascular system, including the flow of blood during each heartbeat and...
In this technical perspective, we present a compendium of clinically relevant access routes to different parts of the cardiac electrical conduction system based on currently employed catheter imaging systems and determine the quantitative size constraints for endoscopic cardiac optogenetics. We discuss the ...
Cardiac conduction system of crocodilians We found only one study that reports about the cardiac conduction system in crocodilians (Alligator mississippiensis).36Crocodilians are of special interest because they are the only ectothermic vertebrates with a full ventricular septum. The authors mapped ventri...
The heart is an organ that pumps blood through the blood vessels of the circulatory system. This blood carries oxygen and nutrients to the body, while it removes the metabolic waste [1]. Heart rate (HR) is the rate at which the heart pumps and is measured by the number of contractions ...