What is another word for air sac?
Pronunciation: [ˈe͡ə sˈak] (IPA) 
Air sac is a term used to describe a group of air-filled spaces in the body of certain animals, such as birds and reptiles, which provide additional respiratory capacity. There are several synonyms for the term air sac that can be used when discussing animal anatomy, including alveoli, bronchioles, pulmonary sacs, lung chambers, and respiratory pockets. These synonyms provide a more specific description of the function and location of the various air-filled spaces within the body. Understanding the different terminology associated with animal anatomy is important for scientists, veterinarians, and individuals interested in the study of biology and physiology.
