Term
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Definition
| breathing, inspiration, & expiration |
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Term
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Definition
- Pulmonary ventilation- breathing
- Physics of gases
- Gases move from high pressure to low press.
- Pressure of a gas determined by its volume
- inc vol. = decr. press.
- decr. vol.= inc. press.
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Term
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Definition
- Pulmonary ventilation
- Active process (req. energy)
- Diaphragm & intercostals contract
- Inc. vol. of thoracic cavity
- Dec. press. of thoracic cavity below atmospheric press.
- Air rushes in
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Term
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Definition
- Pulmonary Ventilation
- Passive process (no energy req.)
- Diaphragm & intercostal relax
- decr. vol. of thoracic cavity
- incr. press. of thoracic cavity above atmospheric press.
- Air rush out
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Term
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Definition
| amt. of air inhaled & exhaled at rest (~500ml) |
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Term
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Definition
| addditional amt. of air beyond tidal that can be inhaled (~3000ml) |
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Term
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Definition
| additional amt. of air beyond tidal that can be exhailed (~1200ml) |
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Term
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Definition
- Amt. of total capicities
- Insipiratory + Expiratory + Residual + Tidal
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Term
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Definition
| gas exchange -/- alveoli & BL |
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Term
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Definition
- Gases in a mixture are independent of one another
- Total pressure of mixture of gases = sum of partial of each gas
- Gases moved from high partial pressure to low partial pressure
- Pressure determines gas exchange- make deoxygenated BL oxygenated
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Term
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Definition
| the pressure of a specific gas in mixture |
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Term
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Definition
- Each gas has unique solubility coefficent
- Solubity influenced by partial pressure
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Term
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Definition
| gas exchange -/- BL & tissues |
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Term
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Definition
- Neural ctrl of respiration
- Spontaneously active (like SA node of heart)
- Set restung rate (12-15 beats)
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Term
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Definition
- Neural ctrl of respiration
- Forced expiration when active (exiratory reserve)
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Term
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Definition
- Neural control of respiration
- pneumo= air or breathing, taxic= arrangement
- decreased inspiration/ increased expiration
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Term
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Definition
- Neural control of respiratory
- increased inspiration/ decreased expiration
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Term
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Definition
- Inflammation of pleural membrane
- Generates pains as inhale
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Term
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Definition
- Inflammation of the alveoli
- Alveoli fill up with fluid, limiting gas exchange
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Term
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Definition
- Alveoli lose elasticity
- Alveolar wall eventually distegrates
- Caused by exposure to atmospheric toxins
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Term
| Resipratory Distress Syndrome |
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Definition
- Alveoli lack surfactant (help keeps alveoli from collasping)
- Alveoli collapse & inner wall adhere so alveoli dont reinflate
- Due to genetic mutation
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Term
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Definition
- Begins as inflammation of pleural membrane
- Inflammation spreads to lung tissue
- Lung tissue gradually destroyed
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Term
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Definition
- Sparm of bronchide smooth muscle
- Intiated by allergic response, inflammation, etc
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Term
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Definition
| a wetting agent in the lungs |
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