Question

the amount of air that remains in the lungs after a gentle expiration is the:
tidal volume
residual volume
functional residual capacity
expiratory reserve volume
1 point
question 18
which of the following is true regarding the lobes of the right and left lungs?
right lung has 2 lobes
left lung has 2 lobes
last saved 10:31:27 pm

Explanation:

• Question 17:
• Tidal volume is the amount of air that moves in or out of the lungs with each respiratory cycle.
• Residual volume is the amount of air remaining in the lungs after a forced exhalation.
• Functional residual capacity is the volume of air present in the lungs at the end - expiratory level. It is the sum of residual volume and expiratory reserve volume.
• Expiratory reserve volume is the additional amount of air that can be expired from the lungs by determined effort after normal expiration.
• Question 18:
• The right lung has three lobes (superior, middle, and inferior).
• The left lung has two lobes (superior and inferior) to accommodate the heart.

Answer:

• Question 17: C. Functional residual capacity
• Question 18: B. Left lung has 2 lobes