Cardiac conduction system explained
[DOC File]Travel Brochure of a Body System
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THIS IS NOT TO BE A SIMPLE REPORT ON A SYSTEM. YOU ARE TRYING TO SELL A TOUR TO THIS SYSTEM. HAVE FUN & USE YOUR IMAGINATION! Good luck and welcome to Cardiac Publishing! CheckList _____(20 pts) Did you clearly explain the purpose of the system? _____(20 pts) Did you name all of the organs functioning in the system and explain what they do?
[DOCX File]bio manual 26
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36.8 Illustrate the process of a cardiac cycle using a diagram. 36.9 Examine the relationship between the structure and the functioning of the human heart. 36.10 Discuss the structure and functions of the different kinds of blood vessels involved in blood circulation.
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25. the slowest conduction speed in cardiac tissue is found in. a. Purkinje system. b. AV node. c. Ventricular muscle. d. Bundle of His. e. Atrial pathways. 26. circulatory changes in exercise include. a. total cessation of skeletal muscle blood flow at 50% of its maximal tension – 70%. b. a drop in stroke volume with isotonic muscle contraction
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What exactly is going on in patients suffering from this condition?a) The cardiac muscle recharges faster than usual to recharge between heartbeats.b) The cardiac muscle takes longer than usual to recharge between heartbeats.c) There is a hole in the cardiac muscle.d) The cardiac muscle skips every third beat.BJervell and Lange-Nielsen disorder ...
[DOC File]ADULT AND PEDIATRIC
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29.2 Correlating the Conduction System with the Rhythm Strip The whole process of cardiac contraction starts with firing of the SA node, the pacemaker of the heart. Electricity is then conducted through the atrial conduction tissue resulting in contraction of the atria, then through the AV node where the process is slowed a bit before it hits ...
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Cardiac output (CO) is defined as the volume (mL) of blood pumped by the heart per minute. ... (AV) nodes to increase the conduction rate of the action potential through the heart. Together this increases heart rate. ... OK as explained, but a case could still be made for E – for example, exercise only involving a small number of muscles ...
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Cardiac neural crest cells furnish mesenchymal cells to the heart and great arteries that are involved in vascular remodeling and development of the cardiac conduction system[8-10]. The sympathetic component of the autonomic nervous system promotes cardiac conduction while the parasympathetic selectively exerts an inhibitory influence[11,12].
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All parts of the cardiac conduction system are able to produce an electrical impulse, and act as subsidiary pacemakers (Hampton, 2013). If the SA node fails to fire, or its impulses are blocked, these secondary pacemakers take over, ensuring that the heart does not stop beating (Bennett, 2013).
[DOC File]M29-1, Part 5, E
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Delays in the conducting system may be congenital, or acquired due to disorders such as coronary artery disease, rheumatic fever, medications and cardiac surgery. In first degree block, the PR interval on the ECG is prolonged beyond the normal 0.20 seconds.
[DOC File]Cardiology Review Notes Cardiorespiratory Diagnosis Dr
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However, more than 50% of first degree blocks degenerate into second degree blocks. A first degree block may also result from ischemia to the AV node (perfused by the right coronary artery); compromised blood flow from the right coronary artery will generally cause other dysfunctions of the cardiac conduction system as well.
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