Conduction pathway heart
How Does Conduction System of the Heart Work? | New Health Ad…
• The intrinsic conduction system of the heart initiates depolarization impulses. • Action potentials spread throughout the heart, causing coordinated heart contraction. • An ECG wave tracing records the electrical activity of the heart. ** Now is …
[DOC File]Start with the rhythm strip (II) - PHS Institute
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Heart. 1. General information. A) Located within mediastinum, within the . B) About the size of a . C) Cone-shaped – D) Main function is to . 2. Coverings of the heart. A) Surrounded by the – dual-walled structure. 1) a) b) Anchors it to surrounding structures. c) 2) a) 2 layers. i) (a) Attached to fibrous pericardium. ii) (a) Integral part ...
[DOC File]Intrinsic Conduction System
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• The intrinsic conduction system of the heart initiates depolarization impulses. • Action potentials spread throughout the heart, causing coordinated heart contraction. • An ECG wave tracing records the electrical activity of the heart. ** Now is …
[DOC File]Ch 18 Cardiac Physiology
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heart contracts without nerves. non-contractile cardiac cells act like neurons. initiate and spread action potential for entire myocardium. autorhythmic depolarize automatically. conduction pathway connected autorhythmic cells. autorhythmic cells. spontaneous depolarization. pacemaker potential unstable resting potential . hyperpolarized at - 60 mV
[DOC File]Cardiac Action Potential ADAM
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conduction pathway. Sino-atrial (S-A) node. Atrio-ventricular (A-V) node. A-V bundle (bundle of His) bundle branches. Purkinjie fibers. gap junctions spread depolarization along pathway. S-A node. sino-atrial node = pacemaker. right atrium. prepotential ~ 90+ / min. fastest autorhythmic tissue. sets pace for entire myocardium. slowed by P-ANS ...
[DOC File]Chapter 27 Reproductive Endocrinology
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• An abnormally fast heart rate, such as 120 beats per minutes, one heartbeat takes 0.5 seconds. (1 minute/120 beats) (60 seconds/1 minute) = 0.5 seconds. Study Questions on the Intrinsic Conduction System: 1. (Page 1.) What is the purpose of the intrinsic conduction system of the heart? 2. (Page 1.)
[DOCX File]Heart - Georgia Highlands College
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(c) Identify each of the elements of the intrinsic conduction system (numbers 1-5 on the figure) by inserting the appropriate terms in the blanks left of the figure. (d) Indicate with green arrows the pathway that impulses take through this system. _____ G. The pacemaker of the intrinsic conduction system _____ H.
[DOC File]Anatomy Review: The Heart - Grey Parrot
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3. Describe the cardiac conduction pathway: 4. Hormones of the heart: Epinephine: Aldosterone: ANP: 5. What is blood pressure? 6. What is clubbing? 7. What does a Homans sign assess for? Is it always accurate? 8. Where do you palpate the chest for PMI? 9. What are the sounds that you hear with the heart, and how are they made? 10, Briefly ...
[DOC File]Cardiovascular System Function, Assessment and Therapeutic ...
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Heart. 1. General information. A) Located within mediastinum, within the pericardial cavity. B) About the size of a fist. C) Cone-shaped – apex facing left hip. D) Main function is to pump blood. 2. Coverings of the heart. A) Surrounded by the pericardium – dual-walled structure. 1) Fibrous pericardium. a) Protects heart. b) Anchors it to ...
[DOCX File]Heart - Georgia Highlands College
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Normal Conduction Pathway. Once an impulse originates in the sinus node, it travels from the sinus node through the atria to. the AV node or junction, which also includes the bundle of His. ... The heart is under the control of the autonomic nervous system, which consists of sympathetic (or adrenergic) and parasympathetic fibers. Stimulation of ...
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