Last Updated：2025/12/04
(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.
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aortic arch
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Source Word
aortic arch
Noun
Japanese Meaning
大動脈弓：大動脈の一部で、上行大動脈と下行大動脈の間に位置する湾曲部分。ここから腕頭動脈、左頸動脈、左鎖骨下動脈が分枝する解剖学的構造。
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(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.
（ plural ）
