QUESTION: Which of the following is not the function of conducting part of respiratory system?
A It humidifies the inhaled air
B Temperature of inhaled air is brought to body temperature
C Provides surface area for diffusion of O
2 and CO
2
D It clears inhaled air from foreign particles
ANSWER:
Provides surface area for diffusion of O2 and CO2
| Aspect |
Conducting Part |
Respiratory Part |
| Components |
· Nose and Nasal Cavity
· Pharynx
· Larynx
· Trachea
· Bronchi
· Bronchioles |
· Alveoli
· Respiratory Membranes |
| Function |
· The most important function of conducting part of respiratory system is to humidify the inhaled air.
· Prevents excessive drying of the respiratory passage ways.
· Adjusts the temperature of inhaled air and brings it closer to body temperature to prevent from thermal shock.
· Clears inhaled air, thus make it free from foreign particles, such as dust and microbes.
|
· Alveoli are tiny, air-filled sacs present in the lungs. These are the primary site, where oxygen is absorbed into the bloodstream and carbon dioxide is released from the bloodstream for exhalation.
· Respiratory membranes are the thin barrier between alveolar air and pulmonary capillaries that allows for the exchange of oxygen and carbon dioxide. |
