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

Resp. Physio

LUNGS

QuestionAnswer
Bronchioles and Alveoli Alveoli = hollow sacks interconnected with passageways Around outside of alveoli  extensive capillary network Elastin fibres of alveoli make it elastic When you breathe in it expands from energy stored in elastin fibres
Lungs -Two lungs: Principal organs of respiration --Right lung: Three lobes --Left lung: Two lobes =Divisions -Lobes, bronchopulmonary segments, lobules
Pleura Pleural fluid produced by pleural membranes Acts as lubricant Helps hold parietal and visceral pleural membranes together --Pleural fluid –transmits force from rib cage to lungs...very slippery Reduces irritation of pleural membrane
Ventilation Movement of air into and out of lungs Air moves from area of higher pressure to area of lower pressure Pressure is inversely related to volume
Alveolar Pressure Changes I 1.Barometric P. = Alevolar P.=no air movement
Alveolar Pressure Changes II + III 2.increase thoracic vol = inc alv. vol, dec P. Barometric Presure greater > alv. P. air moves into lungs. 3. end of inspiration
Alveolar Pressure changes IV Decreased thoracic volume results in decreased alveolar volume and increased alveolar pressure. Alveolar pressure is greater than barometric air pressure and air moves out of the lungs.
Changing Alveolar Volume Lung recoil Causes alveoli to collapse resulting from >>Elastic recoil and surface tension >>>Surfactant: Reduces tendency of lungs to collapse
Changing Alveolar Volume II --Pleural pressure Negative pressure can cause alveoli to expand Pneumothorax is an opening between pleural cavity and air that causes a loss of pleural pressure
Compliance I Measure of the ease with which lungs and thorax expand The greater the compliance, the easier it is for a change in pressure to cause expansion
Compliance II --A lower-than-normal compliance means the lungs and thorax are harder to expand ---Conditions that decrease compliance =Pulmonary fibrosis =Pulmonary edema =Respiratory distress syndrome
Created by: zeenat
 

 



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