Question

1. What things affect airflow and which one is the most important?

2. Explain how an asthma attack could create a life-threatening condition?

3. Explain how emphysema is associated with expiratory flow limitation and its consequence on the person’s health

4. What are the muscles of inspiration?

5. What role do these muscles perform?

6. What are the primary sources of resistance for inhalation?

7. How would pulmonary edema (accumulation of fluid in lung tissue) affect lung compliance?

8. How would pulmonary edema affect motor unit recruitment to the inspiratory muscles?

9. How does breath-holding affect P_O2 and P_CO2 in the alveoli?

10. Do the tissues of your body stop their metabolism (i.e., O2 consumption and CO2 production) when you hold your breath?

11. Predict what would happen to P_O2 and P_CO2 in the systemic arterial blood if you held your breath for a long time.

12. Explain how would COVID-19-induced pneumonia affect P_O2 and P_CO2 in the systemic arterial blood?

Answer 1

Multiple factors can influence airway resistance, including the velocity of airflow, the diameter of the airway, and lung volume. These are some of the most significant contributing factor like airway resistance

Surface Tension of the Alveolar Fluid. -Causes alveoli to assume smallest possible diameter. ...

Lung Compliance. -effort required to stretch lungs and thoraric wall. ...

Airway Resistance. -walls of airway offer some resistance to the normal flow of air into and out of the lungs.