脊髄

1. Origins, structure, and basic meaning

• Structure: 脊髄(せきずい) is the spinal cord, nervous tissue within the backbone that carries signals between the brain and body.
• Basic usage: It describes tests confirming that the spinal cord was not damaged.
  • 検査で脊髄に損傷がないことを確認した。

2. Common pitfalls and similar expressions

• Spinal cord and backbone
  • 脊髄 is nervous tissue, while 脊椎(せきつい) refers to the backbone. The similar-looking words identify different structures.