Question

Which of the following structures are supported by incomplete cartilaginous rings?
a) Trachea
b) 1º bronchi
c) 2° bronchi
d) 3° bronchi
e) Initial bronchioles
f) terminal bronchioles
g) duct of alveoli
h) alveoli
1) a, b, c, d and e
2) a, b, c, d, e and f
3) a, b, c, d, e, f and g
4) a, b, c, d, e, f, g and h​

Answer 1

Answer:

$<marquee><font color="magenta" ><h1>option a is right$

Answer 2

Answer:

1) a, b, c, d and e

Explanation:

Upto Initial bronchioles only C shaped Incomplete Cartilaginous Rings are present ......

From terminal bronchioles the Sac like Structure starts ......