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
Stack #16825
Mechanics of Breathing
| Question | Answer |
|---|---|
| Baring pneumothorax, this pressure is always lower than atmospheric pressure(that is, is negative pressure) | Intrapleural pressure |
| Pressure of air outside the body | Atmospheric Pressure |
| As it decreases, air flows into the atmospheric pressure, of the lungs | Intrapulmonary Pressure |
| As it increases over atmospheric pressure, air flows out of the lungs | Intrapulmonary Pressure |
| If this pressure becomes equal to the atmospheric pressure, the lungs collapse | Intrapleural Pressure |
| Rises well over atmospheric pressure during a forceful cough | Intrapulmonary Pressure |
| Also known as the intra-alveolar pressure | Intrapulmonary Pressure |
| The change in lung volume with a given change in transpulmonary pressure | Lung compliance |
| Gas flow changes inversely with this factor | Respiratory passageway resistance |
| Essential for normal respiration | Lung elasticity |
| Leads to RDS when surfactant is absent | Alveolar surface tension forces |
| Diminished by age-related lung fibrosis and increasing rigidity of the thoracic cage | Lung compliance |
| Its loss is the major pathology in emphyema | Lung elasticity |
| Reflects a state of tension at the surface of a liquid | Alveolar surface tension forces |
| Dramatically increased by asthma | Respiratory passageway resistance |
| Greatest in the medium-sized bronchi | Respiratory passageway resistance |
| Name the three accessory muscles that are activated during forced inspiration that raise the rib cage more vigorously | scalenes, sternoclemastoids, pectoralis |
| Provide two examples of muscles that depress the rib cage upon forceful expiration | Internal intercostals, latissmus dorsi |
| Provide two examples of muscles that cause abdominal pressure to rise | Obliques, transversus |
| Three factors that decrease alveolar ventilation rate | Shallow breathing, Rapid breathing, Mucus in the resp passageways |
| Respiratory volume inhaled or exhaled during normal breathing | Tidal Volume (TV) |
| Air in respiratory passages that does not contribute to gas exchange | Dead space volume |
| Total amount of exchangeable air | Vital capacity(VC) |
| Gas volume that allows gas exchange to go on continuously | Residual volume(RV) |
| Amount of air that can still be exhaled(forcibly)after a normal exhalation | Expiratory reserve volume(ERV) |
| Sum of all lung volumes | Total lung capacity(TLC) |
| Pulmonary function tests can be conducted using a_____ | Spirometer |
| This type of test can distinguish between_______&_______ | Obstructive pulmonary dz, restricted disease |
| Obsructive pulmonary diseases reduce the rate of air flow will lower this value | FEV-forced expiratory volume |
| Restrictive diseases reduces the total inflation capacity will lower this value | FVC-forced vital capacity |
| Sudden inspiration, resulting from spasms of the diaphragm are | hiccups |
| A deep breath is taken, the glottis is closed, and air is forced out of the lungs against the glottis; clears the lower resp passageways | cough |
| As just described, but clears the upper respiratory passageways | sneeze |
Created by:
butterflee21
Popular Anatomy sets