Help
Options
Didn't know it?
click below
click below
Knew it?
click below
click below
Don't Know
Remaining cards (0)
Know
retry
shuffle
restart
0:00
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
Cricks Ventilation
Ventilation Process Flash Cards
| Question | Answer |
|---|---|
| What is ventilation? | the movement of air in and out of the body |
| What initiates inhalation? | phrenic nerve stimulation |
| What is the role of the diaphragm in inhalation? | it contracts and moves downward |
| What is the role of the intercostals muscles in inhalation? | they contract |
| How is the thoracic wall changed during inhalation? | it moves superiorly and outward as the intercostals muscles contract |
| How does the thoracic cavity change during the inhalation process? | it increases in volume |
| How does an increase in volume of the thoracic cavity impact pressure in the lungs? | Increased volume causes low pressure in the lungs |
| How does air outside the body respond to low pressure in the lungs? | Air moves from high to low pressure, so it enters the airway into the lungs |
| What is the role of the diaphragm in exhalation? | it relaxes and moves upward |
| What is the role of the intercostals muscles in exhalation? | they relax |
| How is the thoracic wall changed during exhalation? | it falls downward and inward. |
| How does the thoracic cavity change during the exhalation process? | it decreases in volume |
| How does a decrease in volume of the thoracic cavity impact pressure in the lungs? | de creased volume causes low pressure in the lungs |
| How does air outside the body respond to low pressure in the lungs? | Air moves from high to low pressure, so it exits the lungs into the atmosphere |
Created by:
russcrick
Popular Biology sets