приклади
In normal persons, small amounts of food are commonly retained in the valleculae or pyriform sinus after swallowing.
Microscopically, thin branching hyphae with pyriform conidia can be seen.
A pocket was dissected over the piriform aperture.
Of these, aggregate silk is an adhesive, and piriform silk is used to affix dragline silk to substrates.
The bolus passes from the vallecula into the piriform sinuses, before entering the esophagus.
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