NEET PG DENTAL EXAM

HISTOLOGY

URINARY SYSTEM

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
What is emphysema?
A
enlarged alveoli cells
B
disease in the pharnyx
C
lungs are shrunken
D
bronchial tubes contracting
Explanation: 

Detailed explanation-1: -In emphysema, the inner walls of the lungs’ air sacs (alveoli) are damaged, causing them to eventually rupture. This creates one larger air space instead of many small ones and reduces the surface area available for gas exchange. Emphysema is a lung condition that causes shortness of breath.

Detailed explanation-2: -Emphysema develops over time and involves the gradual damage of lung tissue, specifically the destruction of the alveoli (tiny air sacs). Gradually, this damage causes the air sacs to rupture and create one big air pocket instead of many small ones.

Detailed explanation-3: -Hyperinflated lungs are often seen in people with chronic obstructive pulmonary disease (COPD)-a disorder that includes emphysema. Certain lung problems, such as asthma and cystic fibrosis, also can cause hyperinflation.

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