延髄

1. Origins, structure, and basic meaning

• Structure: 延髄 (えんずい) is a noun naming the medulla oblongata, an anatomical part studied in biology.
• Basic usage: It appears when locating the part on a model or discussing a textbook diagram of its functions.
  • 生物の授業で延髄の位置を模型で確認しました。 — We located the medulla using a model in biology class.
  • 教科書には延髄の働きが図で示されています。 — The textbook illustrates the medulla's functions.

2. Common pitfalls and similar expressions

• Term and reading
  • 延髄 is a fixed anatomical term read えんずい. The examples remain within the learning contexts of location and function.