最終更新日：2025/11/21
(anatomy) Either of the two main arteries that supply blood to the head of which the left in humans arises from the arch of the aorta and the right by bifurcation of the brachiocephalic artery with each passing up the side of the neck and dividing opposite the upper border of the thyroid cartilage into an external branch supplying the face, tongue, and external parts of the head and an internal branch supplying the brain, eye, and other internal parts of the head.
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carotid
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carotid
IPA（発音記号）
名詞
(anatomy)
Either
of
the
two
main
arteries
that
supply
blood
to
the
head
of
which
the
left
in
humans
arises
from
the
arch
of
the
aorta
and
the
right
by
bifurcation
of
the
brachiocephalic
artery
with
each
passing
up
the
side
of
the
neck
and
dividing
opposite
the
upper
border
of
the
thyroid
cartilage
into
an
external
branch
supplying
the
face,
tongue,
and
external
parts
of
the
head
and
an
internal
branch
supplying
the
brain,
eye,
and
other
internal
parts
of
the
head.
日本語の意味
頚動脈：頭部へ血液を供給する主要な2本の動脈のうちの一方。人間の場合、左側は大動脈弓から分岐し、右側は腕頭動脈の分岐から発生し、各々頸部を上行。上部で、外側枝が顔面、舌、頭部外部を、内側枝が脳、眼、頭部内のその他の部分を供給する。
意味（1）
(anatomy)
Either
of
the
two
main
arteries
that
supply
blood
to
the
head
of
which
the
left
in
humans
arises
from
the
arch
of
the
aorta
and
the
right
by
bifurcation
of
the
brachiocephalic
artery
with
each
passing
up
the
side
of
the
neck
and
dividing
opposite
the
upper
border
of
the
thyroid
cartilage
into
an
external
branch
supplying
the
face,
tongue,
and
external
parts
of
the
head
and
an
internal
branch
supplying
the
brain,
eye,
and
other
internal
parts
of
the
head.
（ plural ）
