Intra-alveolar surface tension is caused by

Question

Quizplus · Accepted Answer

Intra-alveolar surface tension is caused by the water molecules present in the fluid lining the alveoli. The cohesive forces between the water molecules create a surface tension that resists the expansion of the alveoli during inhalation. This surface tension can make it difficult to inflate the lungs and can contribute to lung collapse in conditions such as respiratory distress syndrome. Acid, mucus, and bicarbonate do not play a significant role in intra-alveolar surface tension.

Intra-Alveolar Surface Tension Is Caused by