Kazue is my best friend.

He is secretly active as a hentai manga artist.

This ancient document describes the use of antimony.

My opponens pollicis muscle hurts.

He is a person who follows his own path, and the phrase 'a big fish does not swim into a small stream' fits him perfectly.

Gidōsanshimō is a courtesy name of Takashina no Kishi.

My flexor pollicis brevis hurts.

He is doing special exercises to strengthen his flexor pollicis longus.

He underwent surgery due to an injury to his extensor pollicis brevis.

He injured his extensor pollicis longus.