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Embryoheart 2

QuestionAnswer
The right horn of the sinus venosus becomes incorporated into wall of the right artrium and the smooth part of the wall is called...? Sinus venarum
What is the crista terminalis? It internally marks the junction of sinus venosus and primordial trium
The left horn of the right atrium becomes...? Coronary sinus
The left atrium has what purpose? The incorporation of primordial pulmonary veins
What type of ridge does the primordial interventricular septum have? Muscular
Which part of the ventricle becomes the muscular part of the IV septum? Primordial interventricular septum
The ventricular walls dialte lateral to septum. (T/F) True
When does the interventricular foramen close? Week 7
Where is the opening fo the interventricular foramen? Between the free edge of IV septum and fused endocardial cushions
What occurs during the closing of teh interventricular foramen? The bulbar ridges of bulbus cordis close, endocardial cushions close and it seperates left and right ventricles.
Created by: chrey23
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