Lauren Parker
Quiz by , created more than 1 year ago

International Baccalaureate Biology (Ventilation) Quiz on Ventilation: inhalation and expiration, created by Lauren Parker on 09/05/2021.

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Lauren Parker
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Ventilation: inhalation and expiration

Question 1 of 7

1

Fill the blank spaces to complete the text.

Inhalation:
1. Diaphragm in a state is domed. When it contracts, it and .
2. intercostal muscles contract and pull on ribs - lifted up and out.

Explanation

Question 2 of 7

1

After inhalation, the thoracic cavity will decrease in volume

Select one of the following:

  • True
  • False

Explanation

Question 3 of 7

1

As the the volume of the thoracic cavity increases, air pressure decreases.

Select one of the following:

  • True
  • False

Explanation

Question 4 of 7

1

If the thoracic cavity has a lower air pressure then...

Select one of the following:

  • air moves into the lungs down the pressure gradient

  • air moves out of the lungs down the pressure gradient

  • air moves into the lungs up the pressure gradient

  • air moves out of the lungs up the pressure gradient

Explanation

Question 5 of 7

1

Fill the blank spaces to complete the text.

Exhalation:
1. Diaphragm and rises.
2. The intercostals relax and internal intercostals .
3. The volume of the thoracic cavity .

Explanation

Question 6 of 7

1

As the volume of the thoracic cavity decreases, air pressure decreases.

Select one of the following:

  • True
  • False

Explanation

Question 7 of 7

1

As the air pressure in the thoracic cavity increases, air is forced out down the pressure gradient.

Select one of the following:

  • True
  • False

Explanation

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