Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
40 Cards in this Set
- Front
- Back
the percentage of vital capacity exhaled during a 1-second period of the FVC test
|
forced expiratory volume (FEV1)
|
|
the amount of air that can be taken into the lungs beyond the tidal volume
|
insipiratory reserve volume
|
|
the amount of air that can be expelled from the lungs beyond the tidal volume
|
expiratory reserve volume
|
|
the volume of a normal breath
|
tidal volume
|
|
the maximum amount of air that can be voluntarily moved in and out of the lungs
|
vital capacity
|
|
the proportion of pressure that a single gas exerts within a mixture
|
partial pressure
|
|
the amount of air that can be expelled completely and rapidly as possible after a maximum inspiration
|
forced vital capacity (FVC)
|
|
the amount of air left in the lungs after a maximum exhalation
|
residual volume
|
|
vital capacity plus residual volume
|
total lung capacity
|
|
respiration
|
breathing and the transport of O2 and CO2 between lungs and body tissues
|
|
ventilation
|
the movement of air into and out of te lungs
|
|
alveoli
|
air sacs in the lungs
|
|
diaphragm
|
dome-shaped muscle, divides the thoracic from abdominal cavities
|
|
inspiration
|
active process of bringing air into the lungs
|
|
expiration
|
passive process of expelling air from the lungs
|
|
Explain how the respiratory and circulatory systems work together to distribute oxygen to, and remove carbon dioxide from, the cells of the body
|
Respiratory system brings in O2 and removes CO2 while the blood is the transport vehicle between lungs and body tissues where CO2 is picked up and O2 dropped off
|
|
tidal volume
|
500mL
|
|
inspiratory reserve volume
|
3000mL
|
|
expiratory reserve volume
|
1200mL
|
|
vital capacity
|
4800mL
|
|
residual volume
|
1000mL
|
|
total lung capacity
|
6000mL
|
|
How do you calculate minute respiratory volume?
|
TV + bpm = minute respiratory volume
|
|
What was the effect of reducing the radius of the air flow tube on respiratory volumes?
|
Increase TLC, FRC, RV -- Obstructive disorder
|
|
What is the role of surfactant in respiration?
|
Decreases surface tension of fluid lining the inner surface of alveoli
|
|
What would happen if surfactant were not present?
|
The alveoli would not stay inflated due to increased surface tension of fluid lining their inner surface
|
|
What happens in pneumothorax?
|
Air is introduced into the intraplural space
|
|
Why is it important to that intrathoracic pressure be kept lower then atmospheric pressure?
|
To keep the lungs tightly attached to the thoracic wall
|
|
What happens to the partial pressure of carbon dioxide in the blood during rapid breathing?
|
Reduced
|
|
What happens to the partial pressure of carbon dioxide during rebreathing?
|
Slows respiratory rate by increasing CO2
|
|
What happens to the partial pressure of carbon dioxide during breathing?
|
Increases
|
|
What was the value obtained for (FEV1/FVC) X 100% with "normal" breathing?
|
80%
|
|
What effect did "emphysema breathing" have on FVC and FEV1?
|
Lowered both
|
|
In "emphysema breathing" which of the two valves, FVC and FEV1 changed the most?
|
FEV1
|
|
What effect did "acute asthma attack breathing" have on FVC and FEV1?
|
lowered both
|
|
In "acute asthma attack breathing" which of the two values, FVC and FEV1 changed the most?
|
FEV1
|
|
Describe the effect that the inhaler medication had on FVC and FEV1
|
returns valves to normal
|
|
Did the valves return to "normal"? Explain.
|
Just about -- IRV a little low
|
|
During "moderate exercise breathing" which volumes changed the most?
|
TV/IRV
|
|
During "heavy exercise breathing" which volumes changed the most?
|
TV/ERV/IRV
|