Notes in Chapter I -- A&P of heart

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Published	06/26/2023	LO 1.1 when an impluse occurin gin the heart moves toward a positive electrode of the ECG, it produces a {{c1::positive waveform}} ; when it move…
Published	06/26/2023	LO 1.2 the heart, blood, and blood vessels are the {{c1::chief component}} of the circulatory system
Published	06/26/2023	LO 1.3the heart is located between the {{c1::lungs}} in the mediastinum behind the {{c1::sternum}}, and it rests on the {{c1::diaphragm…
Published	06/26/2023	LO 1.4the {{c1::myocardial}} cells are the working cells because they contract to propel blood out of the chambers and iniiate and carry impulses thro…
Published	06/26/2023	LO 1.5the key structures of the conudction system are the {{c1::SA Node}}, {{c1::intraatrial conductive pathway}}, {{c1::internodal pat…
Published	06/26/2023	the coronary arteries perfuse the myocardium during {{c1::diastole}}
Published	06/26/2023	the bundle of His and the right and left branches carry impulses from the {{c1::AV node}} to the {{c1::Purkinje fibers}} which extend to jus…
Published	06/26/2023	key LO 1.7the impulse traveling through the His-Purkinje system is seen as a {{c1::flat line}} following the {{c1::P wave}}QRS com…
Published	06/26/2023	LO 1.8the ST segement and T wave represent {{c1::repolarization}} of the {{c1::ventricles}}, which takes place following the conclusion of {…
Published	06/26/2023	LO 1.9 without electrical stimulations, the {{c1::heart muscles}} will not contract {{c2::sodium, clacium and potassium}} are the key e…
Published	06/26/2023	assess your understanding LO 1.1 1. the electrocardiogram measures → {{c1::heart's electrical activity}}2. electrocardiograph can do → …
Published	06/26/2023	assess your understanding LO 1.2 & 1.31. components of the circulatory system include → roughly {{c1::4.7-5.7L of blood}}2. heart acts as the…
Published	06/26/2023	assess your understanding 1.4 the {{c1::working cells}} contract to propel blood out of the {{c1::heart's chambers}}the {{c1::pace…
Published	06/26/2023	assess your understanding 1.6-1.7 electrical impulse normally initiating heartbeat arises from {{c1::SA node}}depolarization of heart progre…
Published	06/26/2023	assess your understanding 1.7-1.8 QRS complex represents → {{c1::ventricular depolarization}}T wave represents → {{c2::ventricular repo…
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