| Successively, ingestion, food transport to the processing teeth, chewing and bolus formation, and swallowing can be recognized. |
| Parent tree swallows deliver food to nestlings in a bolus, making it difficult to determine either the quantity or quality of food. |
| The bolus passes from the vallecula into the piriform sinuses, before entering the esophagus. |
| Once the bolus enters the pharynx, it is transported distally in a structure that can be described as a tubular conduit. |
| A low power laser warms the targeted tissue and releases a bolus of photosensitizer. |
| Another factor that may limit uptake of the radiopharmaceutical is the transient nature of the tracer bolus presented to the cells in vivo. |
