The dilated structure that is lined by endothelial cells and located at the arterial pole of the heart just above (distal to) the truncus arteriosus in mammalian embryos; it is the primordial vascular channel from which the aortic arches (and eventually the dorsal aortae) arise; the aortic sac is homologous to the ventral aorta of gill-bearing vertebrates. [ MP:0012510 ]
This is just here as a test because I lose it
Term information
database
cross reference
- EMAPA:36461
- SCTID:361527005
- FMA:71008
- EHDAA2:0004145
- EHDAA:9826
- RETIRED_EHDAA2:0000133
Subsets
pheno_slim
Term relations
Subclass of:
- heart blood vessel
- artery
- embryonic structure
- part of some outflow tract
- develops from some pharyngeal arch artery