Author Question: Where do most aerosol particles in the 1- to 5-m range deposit? a. Alveoli b. Bronchioles c. ... (Read 60 times)

Chelseaamend

  • Hero Member
  • *****
  • Posts: 545
Where do most aerosol particles in the 1- to 5-m range deposit?
 
  a. Alveoli
  b. Bronchioles
  c. Central airways
  d. Upper airways

Question 2

Which of the following techniques will increase aerosol deposition by sedimentation in the lungs?
 
  a. High inspiratory flow
  b. Short inspiratory time
  c. 10-sec breath-hold
  d. Short expiratory time



Kdiggy

  • Sr. Member
  • ****
  • Posts: 340
Answer to Question 1

ANS: C
Sedimentation occurs mostly in the central airways and increases with time, affecting particles down to 1 m in diameter.

Answer to Question 2

ANS: C
A 10-sec breath-hold can increase aerosol deposition as much as 10 and increase the ratio of aerosol deposited in lung parenchyma to central airway by four-fold.



Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
 

Did you know?

In ancient Rome, many of the richer people in the population had lead-induced gout. The reason for this is unclear. Lead poisoning has also been linked to madness.

Did you know?

Human neurons are so small that they require a microscope in order to be seen. However, some neurons can be up to 3 feet long, such as those that extend from the spinal cord to the toes.

Did you know?

About 600,000 particles of skin are shed every hour by each human. If you live to age 70 years, you have shed 105 pounds of dead skin.

Did you know?

A good example of polar molecules can be understood when trying to make a cake. If water and oil are required, they will not mix together. If you put them into a measuring cup, the oil will rise to the top while the water remains on the bottom.

Did you know?

Approximately 500,000 babies are born each year in the United States to teenage mothers.

For a complete list of videos, visit our video library