I examined muscle activity using an electromyogram.

He boarded the fighter plane as a tail gunner.

The lar gibbon, with its long arms, moves quickly from tree to tree.

He is able to both talk and do, and can handle any job.

He did a somersault in the park.

He goes to the gym every day to train his biceps brachii muscle.

He is doing squats to train his quadriceps femoris muscle.

He is doing squats to train his biceps femoris muscle.

He is training his triceps brachii muscle every day.

My opponens pollicis muscle hurts.