Structure of bronchi is closely related…
a) trachea
b) oesophagus
c) bronchioles
d) none of these
On the basis of size, bronchi are classified into ……..types.
a) two
b) three
c) four
d) five
Explanation: 1.primary bronchi, 2. Secondary bronchi and 3. Tertiary bronchi
Bronchioles are located at the terminal end of the………
a) trachea
b) bronchi
c) alveoli
d) all of these
What is the approximate diameter of bronchioles?
a) 4 mm
b) 3 mm
c) 2 mm
d) 1 mm or less
Which of the following structure of air passageway does/do not have cartilage?
a) trachea
b) larynx
c) bronchi
d) bronchioles
Explanation: bronchioles do not have hyaline cartilage to maintain their patency. Instead, they rely on elastic fibers attached to the surrounding lung tissue for support.
The walls of bronchioles have……
a) ciliated columnar epithelium
b) layer of smooth muscle
c) ciliated cuboidal epithelium
d) both b and c
Explanation: The apical surface of cuboidal epithelial cells with cilia are termed ciliated cuboidal epithelial cells.
