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24 Cards in this Set
- Front
- Back
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Respiratory center of the brain
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Pons and medulla Oblongata
Dorsal respiratory gs Ventral resp. gs pneumotaxic ctr apneustic ctr |
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Dorsal respiratory group
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Inspiratory ctr (Medulla)
normal, quiet breath in |
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Elastic Recoil
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quiet exhale
lungs, muscles return to rest when not excited by Dorsal Resp gs. |
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Ventral Respiratory Group
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Expiratory ctr (medulla oblongata)
Forced breathing inhibitory imp to Dorsal R.C. for deep breath |
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Pneumotaxic Center
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Pons
Controll rate and pattern of breath maybe |
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Apneustic Center
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lower pons
?? work w/ pneumotaxic ctr to controll rate ?? |
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Quiet breath process
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insp. ctr active for about 2 sec. -> inhale -> then inactive 3 sec. -> exhale -> repeat
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impulse to Diphragm
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Phrenic Nerves
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impulse to intercostal muscles
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intercostal nerves
branch of thoracic spinal nrv |
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abdominal muscle impulse
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from spinal nerves in abdominal region of spinal cord
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process of O2 and co2 exchange
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Simple diffusion of CO2 into alveoi and O2 from alveoli into bv.
Vise versa in capillaries |
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Uptake of O2 by Hemoglobin
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Low temp and higher pH in lungs causes uptake, Higher temp and lower pH cause release
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Oxygen transport in blood
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97% by hgb
3% dissolved |
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Carbon dioxide transport in blood
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70% as bicarbonate HCO3-
23% by hgb 7% dissolved |
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oxyhemoglobin
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hemeglobin combined w/ O2
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carbaminohemoglobin
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CO2 with hemoglobin
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Carbon monoxide poisoning
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CO much more reactive w/ hgb thean O2
won't let go unless person is treated with O2 @ 600mm Hg (high pressure) for a while |
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Tidal volume
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amount of air in one normal breath
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minute respiratory volume
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Amount of air moved in one minute
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Expiratory reserve volume
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Amount amount more that can be pushed out after normal exhale
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Vital capacity
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Max amount that can be exhaled after taking the fullest breath possible
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inspiratory capacity
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full amount you can breath in after blowing out all you can
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inspiratory reserve volume
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Amount that can be brethed in after tidal volume
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Residual Volume
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volume left in the lungs all the time
what is left after breathing out all you can |
