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Embryology
Cardiology
34
Medical
Graduate
02/03/2014

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Term
fetal erythropoiesis 3-8 wk
Definition
yolk sac
Term
fetal erythropoiesis 6-30 wk
Definition
liver
Term
fetal erythropoiesis 9-28
Definition
spleen
Term
featl erythropoiesis 28 wk onward
Definition
bone marrow
Term
fetal hb
Definition
alpha-2-gamma-2
Term
adult hemoglobin
Definition
alpha-2-beta-2
Term
truncus arterioles gives rise to
Definition
ascending aorta and pulmonary trunk
Term
bulbus cords gives rise to
Definition
R ventrcle and smooth parts of L and R ventricle
Term
primitive ventricle gives rise to
Definition
trabeculated L and R ventricles
Term
primitive atria gives rise to
Definition
trabeculated L and R atrium
Term
left horn of sinus venous gives rise to
Definition
coronary sinus
Term
R horn of SV gives rise to
Definition
smooth part of R atrium
Term
what gives rise to SVC?
Definition
R common cardinal vein and R anterior cardinal vein
Term
pathology of the truncus arteriosus
Definition
transposition of great vessels, tetrology of fallout, persistent TA
Term
development of aorticopulmonary septum
Definition
neural crest migration
Term
describe interventricular septum development
Definition
1- muscular ventricular septum forms, opening is call inter ventricular foramen
2- AP septum meets and fuses with muscular ventricular septum to form membranous inter ventricular septum, closing the foramen
3- growth of endocardial cushions separates atria from ventricles and contribues to both atrial separation and membranous portion of the septum
Term
interartrial septum development
Definition
1- foramen primum narrows as septum primum grows towards ECC
2- perforations in septum primum form foramen secundum
3- foramen secundum maintains R->L shunt
4- septum secundum contains a permanent opening
5- foramen secundum enlarges and upper large of septum primum degen
6- septum primum forms valve of foramen oval
7- septum secundum and septum primum fuse to form atrial septum
8- foramen ovale closes after birth bc of inc LA pressure
Term
ductus venosus
Definition
blodd from umbilical vein is shunted into the IVC to bypass the hepatic circulation
Term
foramen ovale
Definition
through the IVC is diverted through this and pumped out the aorta to the head and body
Term
ductus arteriosus
Definition
blood from SVC into the pulmonary artery and shunted to the aorta
Term
what keeps a PDA open?
Definition
open
Term
what closes the PDA
Definition
dec resistance in pulmonary vasc causes inc left atrial pressure vs. R atrial pressure; foramen oval closes; inc O2 leads to dec in PG; indomethacin
Term
umbilical vein becomes
Definition
ligamentum teres hepatis
Term
umbilical arteries become
Definition
medial umbilical ligaments
Term
ductus arteriosus becomes
Definition
ligamentum arteriosum
Term
ductus venosus becomes
Definition
ligamentum venosum
Term
foramen ovale becomes
Definition
fossa ovalis
Term
allantois becomes
Definition
urachus median umbilical ligament
Term
notochord becomes
Definition
nucleus pulpous of itervertebral disc
Term
1st aortic arch becomes
Definition
part of maxillary artery
Term
2nd aortic arch becomes
Definition
stapedial artery and hyoid
Term
3rd aortic arch becomes
Definition
common carotid and prox art of ICA
Term
4th aortic arch becomes
Definition
L = aortic arch
R = prix part of R sublcavian
Term
6th aortic arch becomes
Definition
prix part of pulmonary arteries and ductus arteriosus
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