Question

In which of the following subjects the dead space is highest.
A. Old man
B. Old woman
C. Young man
D. Young woman

Answer 1

The gas does not exchange in the lungs because of the dead space volume occupied by the gas. Apparatus dead space, alveolar dead space, physiological dead space, and anatomical dead space are the different types of the dead space present in the old human body. The dead space is high in the old man body because of the low supply of the blood to the lungs.

Complete answer:
The conducting of the airwaves or reaches of alveoli that are poorly perfused in the human body is known as the dead space of the volume of the air in the inhaled gases that does not part in the gas exchanges in the lungs. There is no exchange of the oxygen or carbon dioxide gases in the lungs known as the dead space. Interstitium possible and bicarbonate buffered of the blood are made by the carbon dioxide retained in the lungs. The affinity of the oxygen and hemoglobin or improving of the oxygen uptake in the inspired air through the body temperature. The removal of the mucociliary transport that particulate matter is trapped on the mucus during the airway passing in the lungs.

Hence, the correct answer is option (A).

Note: Snorkel is the part of the long tube that increases the dead space in the lungs during the breath in old age. The snorkel from the previous exhalation inhaled the significant quantities of the air that remained in the one end of the Snorkel and open to the air. So Snorkel is responsible for the dead space due to the less gas exchange in the airway.