What is the purpose of surfactant that lines each alveolus?
A) Gives the lungs their elasticity
B) Keeps the alveoli from collapsing
C) Increases the surface tension of water
Correct Answer:
Verified
Q33: The visceral pleura
A)is a mucous membrane.
B)is attached
Q34: The drop in pressure in the alveoli
Q35: The pressure that forms between the two
Q36: Which serous membrane lines the thoracic cavity?
A)Visceral
Q37: An alveolar sac is made of
A)simple squamous
Q39: The _ are air sacs where gas
Q40: Which muscles contract for a forced expiration?
A)External
Q41: Average tidal volume is approximately
A)1500 mL.
B)2900 mL.
C)1000
Q42: What principle causes the exchange of oxygen
Q43: Total lung volume is approximately 5800 mLs.
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