Table 1.
| Variables | |
|---|---|
| Symbol | Meaning |
| A | Activity of the pre-BötC population |
| hp | Inactivation gating of persistent sodium |
| R(t) | Ramp signal (phrenic activity) |
| xm | Muscle displacement |
| PL | Pleural pressure |
| PA | Alveolar total pressure |
| pao | Alveolar partial pressure of O2 |
| pac | Alveolar partial pressure of CO2 |
| po | Blood partial pressure of O2 |
| pc | Blood partial pressure of CO2 |
| fo | Concentration of O2 in alveoli |
| fc | Concentration of CO2 in alveoli |
| VA | Lung volume |
| q | Air flow through the airways |
| z | Concentration of |
| t | Time (Independent variable) |