Term
| function of forced vital capacity |
|
Definition
| useful in assessing function of respiratory system |
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Term
|
Definition
| 5000 mL; volume of air forcefully expired after a maximal inspiration |
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Term
|
Definition
| 3500 to 4000 mL; volume of air forcefully expired during the first second |
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Term
|
Definition
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Term
|
Definition
| movement of air into lungs |
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Term
|
Definition
| volume of air moved into the lungs per minute; 6000 mL/minute |
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Term
|
Definition
| volume of air available for gas exchange per minute; 4200 mL/minute |
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Term
| pressures involved with breathing |
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Definition
1) barometric air pressure
2) alveolar pressure
3) pleural pressure |
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|
Term
| barometric air pressure (PB) |
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Definition
| atmospheric air pressure outside body (regardless of proximity) |
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Term
|
Definition
| pressure inside of an alveolus |
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Term
|
Definition
| pressure in the pleural cavity |
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Term
|
Definition
| presence of excess air in the pleural cavity leading to an increase in Ppl |
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|
Term
|
Definition
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Term
|
Definition
| Ppl is more positive than Palv |
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Term
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Definition
| bilateral network of neurons with pacemaker-like activity in the medulla |
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|
Term
| function of dorsal respiratory group |
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Definition
| innervate and drive the respiratory muscles |
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Term
| function of ventral respiratory group |
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Definition
| innervate and drive the respiratory muscles; contains pacemaker neurons (pre-Botzinger complex) |
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Term
| inputs from the body that affects respiratory center |
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Definition
1) pontine respiratory group/pneumotaxic center
2) apneustic center
3) cortex
4) hypothalamus
5) chemoreceptors
6) pulmonary stretch receptors
7) proprioceptors and exteroreceptors |
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|
Term
| pontine respiratory group/pneuomtaxic center (description) |
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Definition
| group of neurons in the pons that regulate the duration of inspiration |
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Term
| effect of pontine respiratory group/pneuomtaxic center |
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Definition
| causes short, fast, shallow inspiration |
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Term
| apneustic center (description) |
|
Definition
| group of neurons in the pons that regulate the duration of inspiration |
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|
Term
| effect of apneustic center |
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Definition
| causes long, slow, deep inspiration |
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Term
|
Definition
| voluntary aspect of breathing |
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Term
| hypothalamus (description) |
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Definition
| emotional aspect of breathing |
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Term
|
Definition
| chemoreceptors located in multiple areas of the medulla and pons |
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|
Term
| peripheral chemoreceptors (glomus cells) |
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Definition
| chemoreceptors located in carotid body |
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Term
| function of central chemoreceptors |
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Definition
|
|
Term
| function of peripheral chemoreceptors |
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Definition
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|
Term
| main stimulus to breathing |
|
Definition
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|
Term
| what stimulates breathing in extreme instances |
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Definition
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|
Term
| location of pulmonary stretch receptors |
|
Definition
| throughout airways and alveoli |
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|
Term
| function of pulmonary stretch receptors |
|
Definition
| detect amount of stretch in lungs; sends inhibitory input when lungs are inflated |
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Term
| location of proprioceptors and exteroreceptors |
|
Definition
| throughout limbs and body |
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Term
| function of proprioceptors and exteroreceptors |
|
Definition
| exercise/pain causes stimulation of breathing |
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|
Term
| gas exchange occurs in respiratory zone between |
|
Definition
| alveoli and pulmonary capillaries |
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Term
|
Definition
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|
Term
| percentage of dry air: nitrogen |
|
Definition
|
|
Term
| percentage of dry air: oxygen |
|
Definition
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|
Term
| partial pressure can be changed by changing |
|
Definition
1) atmospheric pressure
2) percentage of gases in a mixture |
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|
Term
| atmospheric pressures decrease with |
|
Definition
|
|
Term
| atmospheric pressures increase with |
|
Definition
|
|
Term
|
Definition
| pressure exerted by gaseous water molecules at full saturation |
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|
Term
| partial pressure of water |
|
Definition
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