Question

A loss of alveoli due to disease creates a(n) ___ dead space.

1) Physiological
2) Anatomical
3) Pulmonary
4) Environmental

Answer 1

Option 2). Anatomical dead space refers to air present in the airways that does not reach the alveoli for gas exchange. Alveolar dead space is when alveoli are unable to function properly due to disease or abnormal blood flow. Total dead space is the combination of anatomical and alveolar dead space, representing the air in the respiratory system not involved in gas exchange.

Step-by-step explanation:

Anatomical dead space, or air in the airway that never reaches the alveoli and hence never takes part in gas exchange, is another component of the respiratory system in addition to the air that generates respiratory volumes. Alveolar dead space is the air inside alveoli that aren't working properly because of illness or irregular blood flow. Alveolar dead space plus anatomical dead space add up to total dead space, which is the total amount of air in the respiratory system not being utilized for gas exchange.