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8 Cards in this Set
- Front
- Back
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Bulbus Cordis
Conus Arteriosus Aortic Vestibule |
smooth part of the right
and smooth left ventricles formed |
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Primitive Ventricle
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Trabeculated part of the Rt & Lft Ventricle
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What structures fuse together to separate the left and right ventricles?
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Muscular Septum and Membranous Septum
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Muscular septum
formation: |
derived from myocardium
formed by expanding heart muscle |
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Membranous septum
formation |
forms from fusion of 3 tissues
endocardial cushions muscular spetum aortico-pulmonary septum |
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Muscular Interventricular Septum
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ventricles start to grow and expand due to myocardial growth
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interventricular foramen
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Muscular IVS grows towards endocardial cushion. starts to close off but stops at 7th week.
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So how is the interventricular foramen closed off?
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membranous IVS forms and fuses with muscular IVS and closes the IVF.
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