| The effects of sleep on respiration include changes in central respiratory control, airways resistance, and muscular contractility. |
| The regulation of contractility in striated muscle by calcium is effected via tropomyosin on the actin filament. |
| Activation of the adrenergic system triggers the release of catecholamines, which stimulate contractility, heart rate, and blood pressure. |
| Little is known about the relative importance of glycogen versus exogenous glucose for contractility of cardiac tissue in trout. |
| Decrease myocardial oxygen demand by decreasing heart rate, systolic blood pressure, and contractility. |
| Hypercapnia can also decrease respiratory muscle contractility, leading to a vicious circle of carbon dioxide retention. |
