pyriform gland

例句：

1. 1. The pyriform gland is responsible for the production of saliva.
   梨状腺负责产生唾液。
2. 2. The pyriform gland is located in the roof of the mouth, behind the tongue.
   梨状腺位于口腔顶部，舌头后面。
3. 3. The pyriform gland plays a crucial role in digestion and swallowing.
   梨状腺在消化和吞咽过程中起着关键作用。