The iliocostalis muscle is part of the muscles in the back, playing a role in supporting the body.

He is studying the insect-like part.

Their friendship is bound by a strong band.

He needed rehabilitation for the lumbrical muscle after surgery.

He is doing special exercises to strengthen his iliacus muscle.

He injured his peroneus longus muscle.

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

He was in pain after hitting his olecranon hard.

What is the return value of this function?

It seems that his actions arise from ressentiment.