Tag Archives | Cardiovascular System

Electrocardiogram Recording: Meaning and Significance

In this article we will discuss about the meaning and significance of electrocardiogram recording. Meaning of Electrocardiogram Recording (ECG/EKG): Pacemaker of the heart automatically and rhythmically gets depolarized and repolarized. This inturn depolarizes and repolarizes both atrial and ventricular muscle fibers. The potential changes produced can be recorded by placing pair of electrodes over the myocardium itself or suitable points [...]

By |2016-11-06T04:09:55+00:00November 6, 2016|Cardiovascular System|Comments Off on Electrocardiogram Recording: Meaning and Significance
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Cardiac Cycle: Meaning, Duration and Phases

In this article we will discuss about:- 1. Meaning of Cardiac Cycle 2. Duration of Cardiac Cycle 3. Phases. Meaning of Cardiac Cycle: SA node, the pacemaker has the property of automaticity and rhythmicity. Because of this, it produces action potentials, which spread all along the atrial and ventricular muscle fibers. This in turn brings about depolarization and repolarization. Following [...]

By |2016-11-06T04:09:55+00:00November 6, 2016|Cardiovascular System|Comments Off on Cardiac Cycle: Meaning, Duration and Phases
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Cardiac Output: Meaning, Determination and Regulation

In this article we will discuss about:- 1. Definition of Cardiac Output 2. Determination of Cardiac Output 3. Regulation. Definition of Cardiac Output: Cardiac output is defined as volume of blood pumped out per ventricle per minute (Table 3.9). Right ventricle pumps blood into pulmonary circulation and during the same time an identical volume of blood is also pumped out [...]

By |2016-11-06T04:09:55+00:00November 6, 2016|Cardiovascular System|Comments Off on Cardiac Output: Meaning, Determination and Regulation
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