Term
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Definition
ventilation
Gas Exchange -External respiration
O2 Utilization- internal respiration |
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Term
| What is diffusion caused by? |
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Definition
| differences in O2 concentrations |
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Term
Structure of respiratory system
Alveoli |
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Definition
Alveoli have Surface Area of 760 sq ft
occur in clusters
at the end of respiratory bronchioles |
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Term
| 2 types of alveolar cells |
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Definition
type I-alveolar cells
Type II- surfactant |
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Term
| what are the 2 zones of the respiratory system |
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Definition
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Term
|
Definition
respiratory bronchioles, alveolar ducts, alveoli
gas exchange occurs here |
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Term
|
Definition
nose down to terminal bronchioles
no gas exchange
involved in warming humidifying and filtering |
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|
Term
| thoracic cavity-diaphragm |
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Definition
| is lower boundary- separated it from abdominal cavity |
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Term
| thoracic cavity- mediastinum |
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Definition
| the column in the middle between pleural cavities |
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Term
|
Definition
the lining of the lungs and pleural cavities
a serous membrane that lubricated for movement and to create negative press with in the pleural cavity |
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Term
| what is the difference between the pressures in the lungs? |
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Definition
| -4 this means the lungs will always want to pull down |
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Term
|
Definition
pressure within the lung tissue;
subatmospheric at rest and during inhalation |
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Term
|
Definition
| pressure within pleural space; even lower that intrapulmonary which sets up transpulmonary pressure |
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Term
|
Definition
| there is an inverse relationship between gas pressure and volume |
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Term
| why do your lungs expand? |
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Definition
| you lungs expand because your thorax expands, your muscles make your thorax bigger |
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Term
| lung property- compliance |
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Definition
ability of the lungs to expand (distendilbility)
change in volume/change in pressure
fibrosis decreases compliance |
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Term
| lung property- elasticity |
|
Definition
tendency of lungs to rebound or recoil
lungs are usually "stuck" to thoracic wall;
because of elasticity they are always in tension |
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Term
| lung property- surface tension |
|
Definition
due to thin film of fluid lining the alveolar epithelium
after exhalation makes it difficult to reinflate alveoli |
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Term
|
Definition
produce by type II alveolar cells
consists of phospholipids
decreases H-bonds, reducing surface tension |
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Term
| respiratory distress syndrome |
|
Definition
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|
Term
| acute respiratory distress syndrome |
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Definition
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Term
|
Definition
external-inspiration
internal- expiration |
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|
Term
| what does quiet inspiration use |
|
Definition
| diaphragm and external intercostals |
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|
Term
| what does quiet expiration use |
|
Definition
| internal intercostals and abdominal muscles |
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|
Term
| what does forceful inspiration use? |
|
Definition
|
|
Term
| what does forceful expiration use? |
|
Definition
| uses internal intercostals and abdominal muscles |
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Term
|
Definition
| normal quite breathing the total volume of air |
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Term
|
Definition
| the volume of air that you can inhale after a normal inhale |
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Term
|
Definition
| the volume of air you can push out of your lungs after a normal exhale |
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Term
|
Definition
| the amount you can't move out of your lungs after you have exhaled |
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|
Term
|
Definition
the full amount of air you can move in and out of you lungs when you are forces to
how much you are capable of moving
Exres+Inres+ TV |
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Term
|
Definition
| total amount of air you can hold in your lungs from 0 to full |
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Term
|
Definition
| how much air you can inhale if you want to TV+InRes |
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|
Term
| functional residual volume |
|
Definition
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Term
|
Definition
|
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Term
|
Definition
|
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Term
|
Definition
| total pressure of gas mixture is sum of partial pressures of the gases |
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Term
|
Definition
| total pressure of O2 CO2 and N2 |
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Term
|
Definition
how much air/how much blood
body tries to match |
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Term
|
Definition
inhibit
E neurons
founding the medulla oblongata
alternate firing |
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Term
|
Definition
found in pons
stimulates I neurons
promotes inspiration |
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Term
|
Definition
found in the pons
antagonizes apneustic center
inhibits Inspiration |
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Term
|
Definition
| drop in pH do to a problem in the respiratory system the body will produce a metabolic alkalosis to balance |
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Term
|
Definition
| a spike in the pH due to breathing issues |
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Term
|
Definition
| will cause respiratory alkalosis |
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Term
|
Definition
| will cause respiratory acidosis |
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