She opened the book with her thumb.

He pointed to the sky with his index finger.

She was wearing a diamond ring on her ring finger.

He likes to take a walk in the park at dusk.

She put a ring on her ring finger.

She uses a diminutive in her name to express cuteness.

We should always remember the power of Kannon in difficult times.

My opponens pollicis muscle hurts.

He underwent surgery due to an injury to his extensor digitorum communis.

He is doing special exercises to strengthen his flexor digitorum superficialis.