1.

Choose the correct option for A, B and C to complete the given data
2.
Floating ribs of thoracic cage are
3.
At which thoracic vertebra does trachea divide into right and left primary bronchi?
4.
The partial pressure of oxygen in the alveolar air is
5.
Inspiration is initiated by
6.
Why do human beings face difficulty to breath in high elevations?
7.
During normal respiration without any effort the volume of air inspired or expired is called
8.
Identify the different parts of the respiratory system in accordance to their location given below
I. Posterior part of the pharynx
II. Present at the glottis
III. In front of oesophagus
Choose the correct option accordingly
9.
The respiratory membranes facilitates the exchange of respiratory gases through diffusion. Oxygen enters the deoxygenated blood through diffusion because
10.
Which of the following gas is quite insignificant for the regulation of respiration rhythm?