Translation guide
In Japanese, the term for 'air sac' depends on the context: anatomical structures in birds or insects, or the alveolar sacs in human lungs. The most common and general term is 気嚢 (きのう), used in biology and medicine.
Refers to air-filled cavities in the bodies of birds, insects, or other animals, often part of the respiratory system.
The standard biological term for air sacs in birds, insects, and other animals. Used in scientific and educational contexts.
Refers to the tiny air sacs in the lungs where gas exchange occurs. In medical contexts, this is usually called 肺胞 (はいほう), but the term 'air sac' may be used loosely.
The air sacs of birds assist in respiration.
The precise medical term for the microscopic air sacs (alveoli) in human lungs. Use this in formal or medical contexts.
Gas exchange takes place in the alveoli.
A more descriptive phrase meaning 'air sacs of the lungs,' which can be understood but is less common than 肺胞 in medical contexts.
The air sacs of the lungs are inflamed.