MD3001 MSA Exam Questions And
Answers @ 2024
what becomes SVC? - Answer anterior cardinal vein
what becomes IVC? - Answer right vitelline vein
fate of third aortic arch - Answer common and internal carotid
fate of fourth aortic arch - Answer left
- the aortic arch
right
- proximal subclavian artery and brachiocephalic trunk
timeline of aortic arch development - Answer week 4 - pharyngeal
arches develop with pair of arteries from aortic sac
- 1 and 2 regress, 3 and 4 large, longitudinal artery forms
week 5 - dorsal aorta degenerates superiorly
- 7th intersegmental artery grows out into upper limb bud
- longitudinal artery extends
week 6 - right dorsal aorta degenerates
- intersegmental arteries degenerate
- 6th aortic arch sends branches to lungs
fate of sixth aortic arch - Answer pulmonary artery
left
- ductus arteriosus
fate of longitudinal artery - Answer vertebral arteries
