Surfactant helps to prevent the alveoli from collapsing by ________
A) humidifying the air before it enters
B) protecting the surface of alveoli from dehydration and other environmental variations
C) warming the air before it enters
D) interfering with the cohesiveness of water molecules, thereby reducing the surface tension of alveolar fluid
D
You might also like to view...
What is the mechanism for stopping bleeding called?
A. Negative feedback B. Erythropoiesis C. Hemostasis D. Thrombocytosis E. Vasoconstriction
Which of these arteries branches to form the anterior tibial and posterior tibial arteries?
A. external iliac artery B. internal iliac artery C. popliteal artery D. femoral artery E. common iliac artery
Urinary tract infections are common in persons with reduced mobility, primarily due to:
A) stasis of urine B) hyponatremia C) poor vascular circulation D) hyperkalemia