Save
Busy. Please wait.
or

show password
Forgot Password?

Don't have an account?  Sign up 
or

Username is available taken
show password

why


Make sure to remember your password. If you forget it there is no way for StudyStack to send you a reset link. You would need to create a new account.
We do not share your email address with others. It is only used to allow you to reset your password. For details read our Privacy Policy and Terms of Service.


Already a StudyStack user? Log In

Reset Password
Enter the associated with your account, and we'll email you a link to reset your password.
focusNode
Didn't know it?
click below
 
Knew it?
click below
Don't know
Remaining cards (0)
Know
0:00
share
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

Ex Phys Ch. 12

Ch. 12 (Quiz 3)

QuestionAnswer
Fick's law in relation to gas exchange Gas diffuses at a rate directly proportional to tissue area and the pressure gradient of the gases on both sides of the membrane
tidal volume air volume moved during either the inspiratory or expiratory phase of breathing cycle
inspiratory reserve volume reserve ability for inspiration
expiratory reserve volume the amount of air left when subject exhales, then continues to exhale and force out additional air
forced vital capacity total volume of air voluntarily moved in one breath
residual lung volume air volume remaining in lungs after exhaling as deeply as possible
total lung capacity (TLC) = RLV(residual lung volume) + FVC(forced vital capacity)
helium dilution method way to indirectly measure RLV; subject exhales normally then rebreathes a known helium mixture for 5 mins
oxygen dilution method more rapid assessment of RLV than helium dilution; determines RLV from dilution of lung's original nitrogen concentration, achieved by rapidly rebreathing a volume of 5 L of 100% oxygen
maximum voluntary ventilation evaluates ventilatory capacity with rapid and deep breathing for 15 secs.
minute ventilation volume of air breathed each minute; MINUTE VENTILATION = BREATHING RATE X TIDAL VOLUME
ventilation-perfusion ratio a ratio signifying that alveolar ventilation matches each liter of pulmonary blood flow
dyspnea inordinate shortness of breath or subjective distress in breathing
Valsalva maneuver forced exhalation against a closed glottis; can cause an acute drop in BP
Created by: jmangum1495
 

 



Voices

Use these flashcards to help memorize information. Look at the large card and try to recall what is on the other side. Then click the card to flip it. If you knew the answer, click the green Know box. Otherwise, click the red Don't know box.

When you've placed seven or more cards in the Don't know box, click "retry" to try those cards again.

If you've accidentally put the card in the wrong box, just click on the card to take it out of the box.

You can also use your keyboard to move the cards as follows:

If you are logged in to your account, this website will remember which cards you know and don't know so that they are in the same box the next time you log in.

When you need a break, try one of the other activities listed below the flashcards like Matching, Snowman, or Hungry Bug. Although it may feel like you're playing a game, your brain is still making more connections with the information to help you out.

To see how well you know the information, try the Quiz or Test activity.

Pass complete!

"Know" box contains:
Time elapsed:
Retries:
restart all cards