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15 Cards in this Set
- Front
- Back
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Sinus Venosis
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Parts of Vena Cavae, parts of right atrium
--> Smooth part of the RA (right horn) Coronary sinus (left horn) |
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Bulbus Cordis
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Right Ventricle (and muscular outflow)
--> Smooth part of the RV (conus arteriosus Smooth part of the LV (aortic vestibule) |
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Primitive Atrium
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left atrium (and part of right)
--> Trabeculated part of the RA Trabeculated part of the LA |
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Primitive Venricle
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left ventricle
--> Trabeculated part of the RV Trabeculated part of the LV ie trabeculated parts of both ventricles. |
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Truncus arteriosus
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aorta and pulmonary trunk
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Blood flow order in primitive heart
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SAVBT
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Blood flow order
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Sinus Venosus
Atrium (primitive) Ventricle (primitive) Bulbus Cordus Truncus Arteriosus |
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Ductus Venosus
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liver--shunts blood cranially to heart.
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Foramen ovale
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shunts blood from right to left atria, bypassing the lungs.
After birth there is physiologic closure within hours because of the changed pressure relationships. Anatomical closure comes later and never occurs in about one-third of individuals. |
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ductus artereosus
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shunts blood from pulmonary artery to arch of aorta.
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ductus arteriosus, proximal parts of pulmonary arteries come from?
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Arch 6
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Arch 3
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common and internal carotid arteries
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Arch 4
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Right subclavian artery and part of the arch of the aorta
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what is the septum primum?
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The valve of the foramen ovale, if competent and adequate prevents flow from left to right.
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what are the three Oxygenated blood bypasses?
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Oxygenated blood bypasses:
-liver via the ductus venosus -lungs via the foramen ovale and ductus arteriosus. |
