He is working out his muscles at the gym every day.

The fascia is an important part that wraps around the muscles.

It's difficult to solve a part of this problem.

Health is very important.

His opinion is very important.

I strained a muscle at the gym yesterday.

The membrane of this cell is very thin.

He injured his fascia lata.

The membrane of this cell is very thin.

He is doing special exercises to strengthen his tensor fasciae latae.