Question

name the thin irregular walled and vascularised bag like structures at the end of the terminal bronchioles
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Answer 1

Answer:

alveoli

The tracheae, primary, secondary and tertiary bronchi are supported by incomplete cartilaginous rings. Each terminal bronchiole gives rise to a number of very thin, irregular-walled and vascularised bag-like structures called alveoli.

Answer 2

Explanation:

Each bronchi undergoes repeated divisions to form the secondary and tertiary bronchi and bronchioles ending up in very thin terminal bronchioles. ... Each terminal bronchiole gives rise to a number of very thin, irregular walled and vascularised bag-like structures called alveoli.