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Cardiac electrical system 

Cardiac electrical system
Cardiac electrical system

Yaver Bashir

, Timothy R. Betts

, and Kim Rajappan

Page of

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date: 18 November 2018

Essential anatomy and physiology 8

This is a C-shaped muscular bundle that separates the flat-walled posterior part of the right atrium (RA) from the anterolateral trabeculated part that becomes the right atrial appendage. Superiorly it starts at the interatrial groove, anterior to the superior vena cava (SVC). It extends laterally and inferiorly to form the pectinate muscles that insert at the tricuspid valve (TV) anteriorly (...

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