Q10 of 32 Page 99

Name the important parts involved in creating a pressure gradient between lungs and the atmosphere during normal respiration.

The important parts involved in creating a pressure gradient between lungs and the atmosphere during normal respiration are :

1. Diaphragm


2. Internal Intercostal Muscles of the ribs


3. External Intercostal Muscles of the ribs


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8

Complete the missing terms

a. Inspiratory Capacity (IC) = _____ +IRV


b. ___________________ = TV + ERV


c. Functional Residual Capacity (FRC) = ERV + ____


 9

Name the organs of respiration in the following organisms:

a. Flatworm - _________________________________________


b. Birds - _____________________________________________


c. Frog- ______________________________________________


d. Cockroach - ________________________________________


 1

State the different modes of CO2 transport in blood.

 2

Compared to O2, diffusion rate of CO2 through the diffusion membrane per unit difference in partial pressure is much higher. Explain.