| The process of deglutition begins with the bolus formation in the oral cavity. |
| Patients may succeed in passing the food bolus by repeated swallowing, by performing the Valsalva maneuver or by making a positional change. |
| The cardiac sphincter opens because of increasing pressure in the esophagus from the food bolus. |
| For an allergic person, a small amount of caffeine acts like a bolus, generating abnormal psychological response, including mania. |
| Another factor that may limit uptake of the radiopharmaceutical is the transient nature of the tracer bolus presented to the cells in vivo. |
| On Midway Island in the Hawaiian chain, a bolus, or mass of chewed food, coughed up by one bird included many identifiable objects. |
