Respiratory System Physiology
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
|
|
||||
|---|---|---|---|---|---|
| name the two phases pulmonary ventilation/breathing are | inspiration & expiration
🗑
|
||||
| inspiration | when air is taken into the lungs
🗑
|
||||
| expiration | when air passes out of the lungs
🗑
|
||||
| as the inspiratory muscles (external intercostals & diahragm) contract during inspiration the size to the throacic cavity | increase
🗑
|
||||
| during inspiration the diaphragm moves from ____ to ___ | a relaxed dome shape to a flattened position (increase the superoinferior volume
🗑
|
||||
| the _____ lift the rib cage; ____ the anteroposterior & lateral dimensions | external intercostals; increasing
🗑
|
||||
| lungs adhear to the thoracic walls bc of the presence of | serous fluid in the pleural cavity
🗑
|
||||
| as intrapulmonary volume increase, the air (gas) pressure inside the lungs ___ | decreases
🗑
|
||||
| what is intrapulmonary volume | volume within the lungs
🗑
|
||||
| during expiration the ____ relax | inspiratoy muscles
🗑
|
||||
| during expiration the natural tendency of the elastic lung tissue to reoil acts to ___ the ___ & ___ volumes | decrease the intrathoracic & intrapulmonary volumes
🗑
|
||||
| as the gas molecules within the lungs are forced closer together, the intrapulmonary pressure ___ | rises; to a oint higher than atmospheric pressure
🗑
|
||||
| what does this cause? | gases to flow from the lungs to equalize the pressure inside & outside the lungs (act of expiration)
🗑
|
||||
| normal quiet breathing moves about _____ of air in & out of th elungs w. each breath | 500ml
🗑
|
||||
| TV | idal volume; amount of air inhaled or exhaled w. each breath under resting conditions (500ml)
🗑
|
||||
| IRV | inspiratory reserve volume; amount of air that can be forcefully inhaled after a normal tidal volume inhalation (3100 ml)
🗑
|
||||
| ERV | expiratory reserve volume; amount of air that can be forcefully exhaled after a normal tidal volume exhalation (2100 ml)
🗑
|
||||
| VC | vital capacity; maximm amount of air that can be exhaled after a maximal inspiration (4800 ml)
🗑
|
||||
| give the VC equation | VC= TV+ IRV + ERV
🗑
|
||||
| spirometer | measures respiratory volumes
🗑
|
||||
| name the two major types of spirometers | handheld dry/wheel & "wet" spirometers (phipps & Bird spirometer)
🗑
|
||||
| emphysema | a chronic obstructive pulmonary disease (COPD) that causes the ERV to be dramatically reduced in conditions in which the elasticity of the lungs is decreased
🗑
|
||||
| give the equation for MRV | (minute respiratory volume (MRV= TV x respirations/min)
🗑
|
||||
| FVC | (focrced vital capacity) measures the amount of gas expelled when the subject takes the deepest possible breath & then exhales focefully & rapidly
🗑
|
||||
| pulmonary function tests can help the clinician to distinguish between __&___ | obstructive disorders & restrictive pulmonary diseases
🗑
|
||||
| Examples of obstructive disorders | chronic bronchitis & asthma
🗑
|
||||
| what is happening during obstructive disorders | airway resistance is increased
🗑
|
||||
| Examples of restrictive diseases | polio & tuberculosis
🗑
|
||||
| what is happening during restrictive disease | total lung capacity declines
🗑
|
||||
| FEVt | forced expiratory volume; specifically looks at the percentage of the vital capacity that is exhaled during specific time intervals of the FVC test
🗑
|
||||
| FEV1 | amount exhaled during the first second (low in those w. obstructive disease)
🗑
|
||||
| the neurl centers that control respiratory rhythm & maintain a rate of __ to __ respirations/min are located in the ___ & ___ | 12 to 18; medulla & pons
🗑
|
||||
| death occurs whe ______ are completely ____ | medullary centers are completely suppressed
🗑
|
||||
| an example of this happening would be | an overdose of sleeping pills or gross overindulgence in alcohol & respiration ceases completely
🗑
|
||||
| pneumograph | apparatus that records variations in breathing patterns, is the best means of obs resp variations resulting fr. physical & chemical factors
🗑
|
||||
| bronchial sounds | produced by air rushing through the large respiratory passageway (the trachea & the bronchi)
🗑
|
||||
| vesicular breathing sounds | results from air filling the alveolar sacs & resmbles the sound of a rustling or muffled breeze
🗑
|
Review the information in the table. When you are ready to quiz yourself you can hide individual columns or the entire table. Then you can click on the empty cells to reveal the answer. Try to recall what will be displayed before clicking the empty cell.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
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
Created by:
Brina
Popular Medical sets