He goes to the gym every day to train his triceps surae muscle.

The splenius capitis muscle is a part of the neck muscles, helping to tilt the head backwards.

The semispinalis capitis muscle is a part of the neck muscles, helping to tilt the head backwards.

The obliquus capitis inferior muscle is a part of the neck muscles, helping to tilt the head.

The obliquus capitis superior muscle is part of the neck muscles, helping to tilt the head.

The rectus capitis lateralis muscle is part of the neck muscles, and it helps to move the head sideways.

He is doing a special exercise to train his occipitofrontalis muscle.

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

Him calling me lazy is truly a case of the pot calling the kettle black.

His long talk is just like 'a hundred days of sermonizing without a fart.'