Last Updated：2025/11/20
(anatomy) The passages, divided into an upper and a lower part, through which air enters and leaves the body, including the mouth, nose and nasal passages, pharynx, larynx, trachea, bronchi and conducting bronchioles, sometimes further including the respiratory bronchioles, alveolar ducts and alveoli.
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respiratory tract
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Source Word
respiratory tract
Noun
(anatomy)
The
passages,
divided
into
an
upper
and
a
lower
part,
through
which
air
enters
and
leaves
the
body,
including
the
mouth,
nose
and
nasal
passages,
pharynx,
larynx,
trachea,
bronchi
and
conducting
bronchioles,
sometimes
further
including
the
respiratory
bronchioles,
alveolar
ducts
and
alveoli.
Japanese Meaning
体内への空気の出入りを担う通路の総称。上部は鼻、口、鼻腔、咽頭、喉頭を含み、下部は気管、気管支、伝導性細気管支を含む。場合によっては、呼吸性細気管支、肺胞管、肺胞を含むこともある。
Sense（1）
(anatomy)
The
passages,
divided
into
an
upper
and
a
lower
part,
through
which
air
enters
and
leaves
the
body,
including
the
mouth,
nose
and
nasal
passages,
pharynx,
larynx,
trachea,
bronchi
and
conducting
bronchioles,
sometimes
further
including
the
respiratory
bronchioles,
alveolar
ducts
and
alveoli.
（ plural ）
