TAWARA'S NODE Meaning and Definition
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Tawara's node, also known as the atrioventricular (AV) node, is a crucial component of the electrical system that regulates the heartbeat in mammals, including humans. Located near the center of the heart, Tawara's node serves as a connection between the upper chambers of the heart, called the atria, and the lower chambers, known as the ventricles.
This specialized cluster of cells acts as a relay station through which electrical signals produced in the atria spread to the ventricles, coordinating the contraction and relaxation of the heart muscles for an efficient cardiac cycle. Tawara's node, named after its discoverer, Sunao Tawara, is essential in maintaining a synchronized and rhythmic pumping action, which is necessary for the heart to efficiently circulate oxygenated blood throughout the body.
The activation of Tawara's node leads to the propagation of electrical impulses through the heart's conducting system, ultimately causing the ventricles to contract and pump blood out of the heart. Due to its central role in controlling the heart rhythm, Tawara's node is considered a vital component of the cardiovascular system.
Any disturbances or abnormalities in Tawara's node, such as conduction delays or blockages, can disrupt the normal electrical flow, leading to heart rhythm disorders, such as atrioventricular block or heart block. These conditions can cause symptoms ranging from mild palpitations or dizziness to severe consequences like heart failure or even cardiac arrest, emphasizing the importance of Tawara's node in the proper functioning of the heart.
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A node near the coronary sinus in the right atrium, from which starts the bundle of His; Aschoff's node, Koch's node.
A practical medical dictionary. By Stedman, Thomas Lathrop. Published 1920.
Common Misspellings for TAWARA'S NODE
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Etymology of TAWARA'S NODE
The term "Tawara's node" is named after a Japanese physician named Sunao Tawara. Sunao Tawara was a researcher who made significant contributions to the understanding of the electrical conduction system of the heart. He discovered a specialized bundle of conducting tissue located in the lower part of the atria called the "atrioventricular bundle". This bundle is now known as the "AV bundle" or "bundle of His". The term "Tawara's node" is sometimes used as a synonym for the AV node, which is part of the AV bundle. So, the etymology of the term "Tawara's node" comes from the name of the Japanese physician Sunao Tawara, who made the important discovery of the AV bundle in the heart's conduction system.
Similar spelling words for TAWARA'S NODE
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