骨盤

1. Origins, structure, and basic meaning

• Structure: Written 骨盤 and read こつばん, it is the ring-like bony structure connecting the lower spine with the legs.
• Basic usage: It is located on an anatomical model and shown from the front in a textbook diagram.

2. Common pitfalls and similar expressions

• A bony structure, not one isolated bone
  • The pelvis comprises connected bones and is distinct from the external shape of the hips.