Question
Biology Question on The respiratory system
Trachea divides into right and left primarybronchi of which thoracic vertebra?
A
5
B
6
C
9
D
4
Answer
5
Explanation
Solution
Trachea is a straight tube extending up to the mid thoracic cavity, which divides at the level of 5th thoracic vertebrae into the right and left bronchi. Each bronchi undergoes many repeated division to form secondary and tertiary bronchi ending up to very thin terminal bronchioles