One
There are about 30,000 of them in each lung.
They are present in the lung surrounding the alveoli.
If you prick the balloon in a lung model, it simulates a condition like a punctured lung or a collapsed lung. This can lead to air escaping from the lung space, causing a loss of pressure and potentially compromising the lung's ability to expand and contract properly.
There are 10 bronchi in each lung.
by studying it practically
the left and right bronchi
Pleura is a double layered membrane surrounding each lung.
Trachea
no
Bronchi are the two tubes that branch off into each lung.
Today, we call the aqua-lung the scuba, however, the aqua-lung was the earliest model of a scuba.