He is doing a special exercise to strengthen his flexor digiti minimi brevis.

The flexor digitorum brevis is a part of the muscles of the foot, playing a role in bending the toes.

He stretches his flexors every day.

He works at the blacksmith's every day to forge his skills.

This festival is held every year.

My flexor pollicis brevis hurts.

He is doing special exercises to strengthen his flexor hallucis brevis.

He injured his little finger.

He injured his little finger.

I strained a muscle at the gym yesterday.