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what is the septum of the heart?
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Asked 5/6/2012 12:23:53 PM
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User: what is the septum of the heart?

Weegy: The septum is the muscular tissue that separates the two parts of the heart. It's thick because it prevents blood from crossing one side of the heart to the other, which is extremely important. [ ]


User: what is the coronary circulation in the heart?

User: what is the coronary circulation in the heart?

User: how does the electrical conduction system of the heart work?





Weegy: The heart's electrical signal begins at the sino-atrial node, or SA node, which is located in the top right chamber, or atrium. [ The signal then travels to both the right and left atria, causing them to contract and push blood into the lower chambers, or ventricles. The electrical signal continues into the ventricles via the atrioventricular node, or AV node, and then into the tissue that separates the ventricles, called the bundle of His. The signal continues down the bundle and into the left and right bundle branches, located within the ventricles. When the signal reaches bundle branches, it causes the ventricles to contract and pump blood to the lungs and body, completing the heartbeat. The conduction system functions as the body's own pacemaker and keeps the heart beating at a normal rate of 60 to 100 beats per minute. If the activity of this system is interrupted due to heart damage or other medical conditions, it can cause the heart to beat at an abnormal rate or with an irregular rhythm. Should this occur, blood flow to the brain and other parts of the body could be compromised. ]
Expert answered|jher000|Points 7202|



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