How the vocal
cords are stretched across the larynx?
a) vertically
b) laterally
c) horizontally
d) crisscross
Why men and women have different vocal pitch? It is because of different…….
a) vocal cords
b) pharynx
c) mouth
d) nose
Explanation: The male vocal folds are between 17 mm and 25 mm in length. The female vocal folds are between 12.5 mm and 17.5 mm long.
What is the normal length of trachea in human?
a) 6-8 cm
b) 10-12 cm
c) 20-22 cm
d) 40-50 cm
What is the normal width of trachea in human?
a) 6 cm
b) 2 cm
c) 3 cm
d) 4 cm
How many characteristic horse shoe shaped incomplete rings are present in the trachea?
a) 2-4
b) 4-8
c) 10-12
d) 16-20
Trachea is lined
by …….
a) cuboidal mucous membrane
b) ciliated mucous membrane
c) columnar epithelium membrane
d) all of these
Explanation: Hair-like structures called cilia line the mucous membrane and move the particles trapped in the mucus out of the nose.
