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BMS 300 Exam 4 Notes

BMS 300 Exam 4 Notes - Exam 4 Notes Respiration Renal...

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Exam 4 Notes: Respiration, Renal System, and Digestion RESPIRATORY SYSTEM: Respiration: O2/CO2 Exchange Pulmonary: Lungs Lung cancer= 28% of all cancers, 98% of lung cancer due to smoking Functions 1. Provides Oxygen 2. Eliminates Carbon Dioxide 3.pH regulation 4. Speech 5. Defense against microbes 6. Chemical Messengers 7. Traps/Dissolves Blood Clots from Veins 2 Divisions: Conducting Zone Air Moves by Bulk flow Flow= Change in pressure/Resistance Functions: 1.Low Resistance Pathway (Change in P= 1-2 mmHg LOW!) 2. Defense against microbes 3. Warms Air 4. Moistens air 5. Phonation (Sounds) 2. Respiratory Zone Gas Exchange Diffusion Ficks Law *Components 1.Alveoli= Functional Units 300 million in humans Part of respiratory zone Associated with pulmonary capillaries Alveoli + capillaries= respiratory membrane Ventilation=breathing Exhalation (Expiration)= air out Inhalation (Inspiration)= air in Tidal Volume= volume/breath X respiratory rate=minute ventilation (liters/min), (breaths/min)
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Anoxia- no oxygen present Hypoxia- oxygen deficient Hypoventilation- less respiration Hyperventilation- too much respiration Apnea- no breathing (Papi Sleep Apnea) Euphenia- normal, quiet breathing Dypsnea- labored breathing Pathway of Air Trachea (Start of Conducting Zone) Bronchi
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  • Fall '07
  • Walrond
  • respiratory zone, Lung Movement Partial Pressure, respiratory rate=minute ventilation, Respiratory Zone Gas, Alveolar Ducts Alveolar

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