Gas exchange in the insect tracheal system
| Autor: | Gregory K. Snyder, Caroline Farrelly, David A. Scholnick, Brandon A. Sheafor |
|---|---|
| Rok vydání: | 1995 |
| Předmět: |
Statistics and Probability
Insecta media_common.quotation_subject Insect Models Biological General Biochemistry Genetics and Molecular Biology Volume expansion Animals media_common Normobaric hypoxia General Immunology and Microbiology Chemistry Primary sites Applied Mathematics Altitude Respiration General Medicine Anatomy respiratory system Adaptation Physiological Trachea Modeling and Simulation Biophysics Breathing Gases General Agricultural and Biological Sciences |
| Zdroj: | Journal of theoretical biology. 172(3) |
| ISSN: | 0022-5193 |
| Popis: | The role of the insect tracheal system in gas exchange during cyclic ventilation is investigated using mathematical models. Three models are presented, one to describe the important elements of gas exchange during each of the three phases of cyclic ventilation. The effects of normobaric hypoxia on gas exchange are then examined, first assuming the initial parameter values set for the tracheal system and, second, assuming conditions of tracheal hypertrophy produced by an increase in the cross-sectional area of the tubes in the tracheal system. An increase in tracheal tube cross-sectional area is an important adaptation to normobaric hypoxia, but only if the tracheae themselves are the primary sites of resistance to gas exchange. Under conditions where the spiracles are the sites of resistance to gas exchange, volume expansion of the tracheae, not an increased cross-sectional area per se, is the important adaptation to normobaric hypoxia. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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