valve--right ventricle--pulmonary valve--pulmonary artery--pulmonary vein--left atrium--bicuspid valve--left ventricle--aortic valve--aorta 2. SA node--AV node--AV bundle--right and left bundle branches--conducting myofibers (purkinje fibers) a. pacemaker cells in SA node spontaneously discharge action potentials at a rate of 100-120+ per minute *AP process: 1. depolarization due to na inflow when voltage gated Na channels open 2. plateau- due to Ca inflow when voltage gated slow ca channels
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https://www.facebook.com/Medicalstudycenter2012 Heart + Nerve & Muscle Important Solved SEQs By Medical Study Center Ref: Guyton Q.1. a). What is saltatory conduction? Enlist its advantages? 1+1 marks b). briefly mention the three determinants of resting membrane potential. 3 marks Ans: Q.1.a. SATTATORY CONDUCTION: 1 mark Propagation of action potential along a myelinated nerve fiber from one node of Ranvier to other in jumping manner is called as saltatory conduction. r Node to node conduction
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Capturing the anguish and agony within those who suffer from illness is an exceedingly difficult task‚ but essayists Kate Butler and Rachel Riederer have harnessed their unique literary abilities in vastly different ways to achieve the same ambitious objective. Butler’s haunting elegy What Broke My Father’s Heart portrays the father’s pain through the daughter’s eyes since the father has almost lost consciousness while Riederer’s Patient is a visceral portrayal of her own injurious accident
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Use of a Pacemaker Dental work should be avoided for a few weeks after implantation of a pacemaker. Afterwards‚ treatment can proceed‚ but it is critical to check with the doctor and even the pacemaker manufacturer for any potential electromagnetic interference that could be caused by common dental devices. 8. Congestive Heart Failure (CHF) In minor cases
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However‚ as I encounter advancement in technology almost every day as I am exposed to new gadgets and devices related to diabetes management my level of competency fluctuates unceasingly. For instance‚ a few months ago Medtronic company has launched new insulin pump 670G which can self-adjust insulin delivery depending on patient’s blood sugars‚ I am almost tempted to say that this is the closest we have ever been in creating an artificial pancreas. Therefore‚ with the speed
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Open-heart surgery had been one of the largest life saving surgeries performed. The first successful open heart surgery was performed in 1952 by Dr. F John Lewis. He used ice to cool down the heart and slow circulation. The basis of heart surgery involves exposing the heart (open). The sternum must be sawed through to expose the heart. The heart cannot be left pumping during surgery. At first ice was used but now a heart lung machine is used. It involves hooking a tube up to the aorta. Blood goes
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Question 3 Needs Grading Placement of a dual-chamber pacemaker. Using a standard technique‚ the left infraclavicular subcutaneous pacemaker pocket was created with sharp and blunt dissection. The 2 j-tipped guidewires were advanced through a left subclavian vein using standard left subclavian venotomy under fluoroscopic guidance. The peel-away sheaths and introducers were advanced over the guidewires‚ and the guidewires were removed. The pacemaker leads were advanced under fluoroscopic and electrophysiologic
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------------------------------------------------- Glossary acids molecules that have a pH level less than 7‚ dissociate in water‚ and release hydrogen ions (H+) action potential the electrical potential determined by unequal ion distribution when a particular site on the neuron membrane is conducting an impulse; normally about +40 millivolts activation energy the amount of energy required before a chemical reaction can occur; this amount is reduced when an enzyme is present active process
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to rejection and calcification than human tissue and can be readily available_____________ 5. Q) What are the two approaches that can be used to implant the electrode portion of a pacemaker? ANSWER: __either an epicardial or transvenous approach can be used to implant the electrode portion of the pacemaker‚ the epicardial approach involves opening the chest to the view of the surgeon and the device being place on the heart________________ 6. Q) What does insufficiency of a heart valve
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their clients with Enterprise Resource Planning coordinated arrangements. The company consists of two separate businesses units: Datatronic Distribution‚ Inc.‚ and Datatronics Romoland‚ Inc. June 15‚ 2006 - Redmond‚ WA – Medtronic Emergency Response Systems‚ a piece of Medtronic Inc.‚ honoured Datatronics their 2006 Supplier Performance Award as Outstanding Supplier of the Year. Randy Eller‚ the VP Sales and Marketing for Datatronics remarked that this honour thinks about Datatronics duty to give
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