鎖骨

1. Origins, structure, and basic meaning

• Structure: 鎖骨(さこつ) means the collarbone, extending below the neck toward the shoulder.
• Basic usage: It identifies an injured area after a fall or a part of the body visible at a shirt collar.

2. Common pitfalls and similar expressions

• The reading of 骨
  • 骨 is read ほね as the standalone word for a bone, but in 鎖骨 it is read こつ.