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Aortic arch
Meaning
Noun
●
In Anatomy:
The
curving
portion
of the
aorta
that
bends
between the
ascending
aorta
and the
descending
aorta
, from which the
brachiocephalic artery
,
left
carotid artery
, and
left
subclavian artery
arise.
●
In Embryology:
One of a
series
of
six
paired
embryonic
vascular
structures
which
connect
the
ventral
arterial
system
lying
anterior
to the
heart
to the
dorsal
arterial
system above the
digestive tract
,
persist
in
adult
fishes
but are
reduced
or much
modified
in the
adult
of higher
forms
, and
give rise to
the great
arteries
of the
neck
and head.
Sourced from
Wiktionary
Synonyms
Arch Of The Aorta
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