The volume of air that does not reach the capillaries is called dead space and numerically it is
200 ml
115 ml
120 ml
150 ml.
Dead Space is the air that is present in the airway that never reaches the alveoli and therefore never participates in gas exchange, that is from nose to terminal bronchiole. Areolar dead space involves air found within alveoli that are unable to function, such as those affected by disease or abnormal. The volume of air that does not reach the capillaries is called dead space. It is 150 ml.Hence, the correct option is d.