Gender roles are an important element in defining individual behavior in society.

His role is to fulfill his responsibilities as a leader.

He is doing a special exercise to strengthen his levator scapulae.

He is doing a special exercise to strengthen his subscapularis muscle.

He trains his gluteus maximus at the gym every day.

He trains his pectoralis major muscle at the gym every day.

He is doing special exercises to strengthen his psoas major muscle.

When she laughs, her zygomaticus major muscle stands out.

His broad shoulders give a sense of strength.

He always supports my opinion.