Question

Describe how asthma and emphysema impact ventilation. 

Answer 1

(1)---Asthma is a chronic lung disease characterized by inflammation in airway.airway obstruction may be due to smooth muscle spasms in the walls of smaller bronchi and bronchioles,edema of the mucosa of the airways,damage to the epithelium of the airways.

(2)those people who suffers from asthma,the airways are swollen and produce lots of thick mucus.

Emphysema---(1)emphysema is a disorder which is characterized by enlargement of the air spaces due to destruction of the walls of the alveoli.

(2)-the lungs with less surface area for gas exchange, oxygen diffusion across the damaged respiratory membrane is reduced.

(3)--it causes an increased amount of air trapped in the lungs at the end of exhalation.