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These conduction pathways transmit action potentials rapidly, So they can go from the SA node to the AV node quickly! The AV node is the secondary pacemaker of the heart! This smaller node of the...
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See where the pacemaker cells start the electrical wave of depolarization, and how it gets all the way to the ventricles of the heart. Rishi is a pediatric i...
The electrical axis reflects the average direction of ventricular depolarization during ventricular contraction. The direction of the depolarization (and thus the electrical axis) is generally alongside the hearts longitudinal axis (to the left and downwards).
There are a number of ways (of varying accuracy) via which to calculate a cardiac axis using an ECG and the hexaxial reference system, pictured below. Method 1. The Quickest Way. It’s as simple as following this table: Method 2. The Nearest 30° Identify the most isoelectric lead on the ECG and then on the hexaxial reference diagram
17 Αυγ 2023 · The cardiac conduction system is a network of specialized cardiac muscle cells that initiate and transmit the electrical impulses responsible for the coordinated contractions of each cardiac cycle.
This lesson includes an animated video lecture, downloadable images, quiz questions and a PDF. Cardiac axis is the net direction of electrical activity during depolarization. In a healthy heart, the net movement is downward and slightly left. This axis is altered, or deviated, in certain conditions.
