Banks' Embryo lectures

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Author:
ashleesumilat
ID:
290513
Filename:
Banks' Embryo lectures
Updated:
2014-12-03 01:26:18
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embryology anatomy
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questions from Banks' 4 embryo lectures
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  1. Embryological origin of the R atrium
    Sinus venosus
  2. What 3 things does the sinus venosus receive?
    • 1) umbilical veins (placenta)
    • 2) vitelline (yolk sac)
    • 3) common cardinal vv. (embryo)
  3. Embryological origin of the auricles (& pectinate muscles of R atrium)
    primitive (primordial) atria
  4. Embryological origin of the L ventricle
    primitive ventricle
  5. Embryological origin of the R ventricle
    bulbis cordis
  6. Embryological origin of the root of aorta & pulmonary trunk
    truncus arteriosus
  7. 3rd aortic arch forms...
    • 1) common carotid aa.
    • 2) proximal internal carotid aa.
  8. 4th aortic arch forms...
    • L: arch of aorta
    • R: subclavian a.
  9. 6th aortic arch forms...
    pulmonary aa.
  10. What does the vitelline venous system drain?
    • GI tract + gut derivatives
    • - R vitelline v.: cranial portion --> portal system & portion of IVC
    • - L vitelline v.: degenerates
  11. Role of umbilical venous system
    • - carries oxygenated blood from placenta
    • -  R umbilical v.: disappears
    • -  L umbilical v.: anastomoses with ductus venosus --> ligt. teres & ligt. venosum
  12. Role of cardinal venous system
    • drains the head, neck, and body wall
    • -  posterior cardinal vv. --> drain the trunk (intercostal, iliac vv.)
    • -  anterior cardinal vv.  --> drain the head and neck (jugular, subclavian vv.)
  13. Embryological structures of the heart and their fate after birth
    • 1) Ductus arteriosus (shunts blood from pulmonary a. to aorta) --> Ligamentum arteriosum
    • 2) Oval foramen --> Fossa ovalis
    • 3) Ductus venosus (shunts blood from umbilical vein to IVC) --> Ligamentum venosum
    • 4) Umbilical arteries --> Medial umbilical ligament
    • 5) Umbilical vein --> Ligamentum teres
  14. Tetralogy of Fallot
    • 1. Pulmonary stenosis
    • 2. Ventricular septal defect
    • 3. Dextroposition of aorta/Aorta arising from both ventricular cavities
    • 4. R ventricular hypertrophy

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