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

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

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.

He ate three apples.

He ate three apples.

He ate three apples.

He ate three apples.

He damaged his peroneus tertius muscle due to a foot injury.

The crescent moon is floating in the sky, it's very beautiful.