The internal anal sphincter is a muscle that helps us control defecation.

The anal sphincter is an important part of the body.

The external anal sphincter plays a crucial role in helping us control defecation.

He will succeed sooner or later.

She was hiding the sadness concealed within her smile.

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

He always helps me when I'm in trouble.

He said that daily defecation is important for health.

He has a habit of defecating every morning after drinking coffee.

Whenever he is feeling down, I always help him.