The SA (sinoatrial node) is a pacemaker that is in the right atrium of the heart. SA node control the heart rate using the electrical impulses that sends to the heart muscles and this is how the heart pumping blood out to the entire body and how the heart contract. The stages of the pathway of action potential: 1) The Action Potential is in the Sinoatrial node (SA). Action potential then travels from the SA node to the AV (atrioventricular node) by crossing to the wall of the atrium. 2) Then the
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this because it is very important terms‚ and involve five stages: 1. The vagus nerve stimulate the sinoatrial node or SAN‚ which is the pacemaker of the heart. Is a small area in the upper wall of the Right atrium‚ close to the vena cava; the fibers of the of the SAN contract 70 times each minutes‚ and after that the impulse is disperse across the atrial cardiac muscle. 2. Simultaneous contraction occurs in both‚ the right and the left; that is mean between tricuspid and bicuspid valves. 3. The atria
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----------------------- The Atrioventricular Node (AVN) • This is the node that involves both the atria and ventricles. • The AVN is deep in the centre of the heart muscle. • It picks up the wave sent by the SAN and delays it by about 0.1s to let the atria finish contracting before the AVN sends the second wave. • The AVN uses the Purkyne tissue (a conducting tissue) to the apex. • The wave is sent up through the ventricles making them contract‚ pushing the blood through the semilunar valves
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world‚ the healthcare industry recently recognized the necessity of business model innovation. In order to stay competitive‚ the medical device producer Medtronic was one of the first companies in the industry to introduce an innovative business model on top of its traditional one. Instead of only providing its customers with the medical device‚ Medtronic is now providing integrated medical solutions to hospitals‚ including the rental of its products. Taking into account the organization’s industry and
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The Cardiovascular System: Intrinsic Conduction System 1. The intrinsic conduction system consists of __autorhythmic cardiac______ cells that initiate and distribute __impulses___ throughout the heart. 2. The intrinsic conduction system coordinates heart activity by determining the direction and speed of _heart depolarization___. This leads to a coordinated heart contraction. 3. List the functions for the following parts of the intrinsic conduction system: a. SA Node __initiates the depolarizing
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* Founded in 1949‚ Medtronic is the world’s largest Medical Technology Company and also a Fortune 500 company. Medtronic specializes in medical devices and therapies to treat over 30 chronic diseases. With headquarters located in Fridley‚ Minnesota the company has over 41‚000 employees bringing in annual revenue of $14.599 Billion dollars. (1) Due to patient’s positive feedback and the results of Medtronic‚ Co-founder Earl Bakken came up with a mission statement half a century ago that continues
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The heart is the contractile organ that provides the bloodstream due to excitation-contraction coupling. It has cells that initiate and propagate the excitement like nodal cells and the conductive tissue‚ as well as cells which answer to the excitement by a contraction like myocardial cells or cardiomyocytes.\\ The propagation of the excitation in the heart is also called the propagation of the depolarization wave that is initiated in the sinus node. This spread is not performed continuously between
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In the qualitative study‚ Cardiovascular Patients’ Experience of Living with Pacemaker: Qualitative Study‚ the objective was to look into the experiences of patients living with a pacemaker. In the introduction‚ the authors describe the reason of cardiovascular disease being one of the most common causes of disease associated mortality being that there is an increase in urbanization‚ industrialized lifestyle and decrease physical activity as well as socio-economic conditions. Coronary artery disease
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Medtronic’s value chain mainly focuses on firm infrastructure‚ operations‚ and technology development. The majority of the value chain that I discussed focused after the “turnaround”‚ when Steve became president of Brady Pacing. From a firm infrastructure viewpoint people were now given responsibility‚ along with accountability. Throughout the company urgency was put forward regarding any new product‚ but this urgency was contrasted with excitement. The idea was to create excitement that
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Essay ON PAcemaker A pacemaker (or artificial pacemaker‚ is a medical device that uses electrical impulses‚ delivered by electrodes contacting the heart muscles‚ to regulate the beating of the heart. The primary purpose of a pacemaker is to maintain an adequateheart rate‚ either because the heart’s native pacemaker is not fast enough‚ or there is a block in the heart’s electrical conduction system. Modern pacemakers are externally programmable and allow the cardiologist to select the optimum pacing
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