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WorksheetsAL3 CVS Development
Total questions: 27
Worksheet time: 15mins
Disappearance of dorsal mesocardium creates
transverse pericardial sinus
oblique pericardial sinus
fossa ovalis
annulus ovalis
Trabeculated bulbous cordis becomes
primitive right ventricle
primitive left ventricle
primitive atria
Trabeculated ventricle becomes
primitive left ventricle
primitive right ventricle
primitive atria
Sources of membranous septum
right truncoconal ridge
left truncoconal ridge
inferior endocardial cushion
interventricular foramen
Which one is developed during 5th week in the right wall of sinus venosus and is then incorporated into wall of right atrium near the entrance of superior vena cava?
AV node
SA node
foramen ovale
sinus venosus
AV node and bundle are formed by
cells from atrioventricular region
cells in left wall of sinus venosus
cells in right wall of sinus venosus
____ are located at base of interatrial septum just superior to endocardial cushions.
AV node and bundle
SA node
foramen ovale
sinus venosus
3rd aortic arch is derived into
common carotid artery
internal carotid artery
external carotid artery
maxillary artery
4th left aortic arch is derived into
arch of aorta
right subclavian artery
left pulmonary artery
stapedial arteriy
4th right aortic arch is derived into
right subclavian artery
maxillary artery
arch of aorta
ductus arteriosus
6th right proximal aortic arch is derived into
right pulmonary artery
disappear
left pulmonary artery
ductus arteriosus
6th right distal aortic arch is derived into
disappear
left pulmonary artery
right pulmonary artery
ductus arteriosus
6th left proximal aortic arch is derived into
left pulmonary artery
right pulmonary artery
ductus arteriosus
disappear
6th left distal aortic arch is derived into
ductus arteriosus
disappear
left pulmonary artery
right pulmonary artery
Origin of ascending aorta
truncus arteriosus
aortic sac
left 4th aortic arch
3rd aortic arch
Origin of arch of aorta
truncus arteriosus
aortic sac
left 4th aortic arch
3rd aortic rch
Causes of ostium secundum defect
excessive resorption of septum primum
failure of septum secundum development
massive atrophy of right atrium and ventricle
incomplete closure of interventricular foramen
Large opening between left and right atrium
ostium secundum defect
atrial septal defect
ventricular septal defect
tetralogy of fallot
The most serious abnormality of atrial septal defect where septum primum and septum secundum is absent.
cor triloculare biventriculare
ostium secundum defect
ventricular septal defect
tetralogy of fallot
Defect caused by incomplete closure of interventricular foramen.
membranous VSD
ASD
muscular VSD
Tetralogy of fallot
Defect caused by formation of perforation in the ventricular septum.
muscular VSD
membranous VSD
ASD
tetralogy of fallot
Components of tetralogy of Fallot.
pulmonary stenosis
overriding of aorta
VSD
ASD
right ventricular hypertrophy
Tetralogy of Fallot is caused by
anterior displacement of trunco-conal septum
absence of interventricular septum
incomplete closure of interventricular foramen
formation of perforation in ventricular septum
Closure of ductus arteriosus through contraction of its muscular wall, occurs first shortly after birth (10-15 hours).
functional closure
anatomical closure
Closure of ductus arteriosus by means of intima (fibrous tissue) proliferation
anatomical closure
functional closure
The most common congenital malformation associated with maternal rubella infection during early pregnancy.
patent ductus arteriosus
tetralogy of Fallot
VSD
ASD
Coarctation of aorta occurs at
ductus venosus
ductus arteriosus
foramen ovale
common carotid artery
