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20 Cards in this Set
- Front
- Back
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What does the truncus arteriosus create?
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Ascending Aorta and Pulmonary Trunk
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What does the bulbus cordis make?
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Smooth parts of left and right ventricles
Outflow tracts |
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What do the Primitive Ventricles make?
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Trabeculated left and right ventricles
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What do the Primitive Atria make?
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Trabeculated left and right atria
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What does the left horn of the sinus venosus create?
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Coronary sinus
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What do the right common cardinal vein and right anterior cardinal vein create?
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SVC
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What is the origin of the Truncus Arteriosus?
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Neural Crest
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What happens when the Truncus Arteriosus doesn't spiral?
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Transposition of the great vessels
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What two other pathologies can occurs from misdevelopment of the Truncus Arteriosus?
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Tetralogy of Fallot
Persistent TA |
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What is the first step in creating the Interventricular septum?
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Muscular ventricular septum forms
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What is the second step invoving the Aorticopulmonary septum and the interventricular septum?
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Rotates and fuses with muscular ventricular septum
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What is the final step to separate the atria from ventricles?
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Endocardial cushions separate atria and ventricles
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What are the 6 steps in creating the interatrial septum?
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1. Foramen Primum narrows as septum primum grows towards endocardial cushions
2. Perforations in septum primum create foramen secundum (primum dissapears) 3. Foramen Secundum maintains R-L shunt as Septum Secundum grows 4. Foramen Ovale developed in Septum Secundum 5. Foramen Secundum enlarges and upper part of septum primum degenerates 6. Remaining septum primum creates valve of foramen ovale |
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What are the four locations of fetal erythropoeisis in chronological order?
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Young Liver Synthesizes Blood
Yolk sac (3-10 weeks) Liver (6 weeks to birth) Spleen (15-30 weeks) Bone Marrow (22 weeks to adult) |
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What is the course of blood in fetal vessels?
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Umbilical vein --> Ductus Venosus in liver --> IVC --> RA
From RA to two different locations RA --> RV --> Pulmonary Artery --> Ductus Arteriosus --> Body RA --> Foramen Ovale --> LA --> LV --> Aorta --> Body |
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What does the 1st Aortic Arch create?
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Part of maxillary artery
"1st arch is maximal" |
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What does the 2nd Aortic Arch create?
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Stapedial artery and hyoid artery
"Second = Stapedial" |
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What does the 3rd Aortic Arch create?
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Common Carotid A and Proximal part of the Internal Carotid A
"C is 3rd letter of alphabet" |
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What does the 4th Aortic Arch create?
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Aortic Arch on left, proximal part of Right Subclavian A
"4th Arch = 4 Limbs = systemic" |
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What does the 6th Aortic Arch create?
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Proximal part of pulmonary arteries and ductus arteriosus
"6th arch = pulmonary and the pulmonary-to-system shung" |
